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71M6513/71M6513H

3-Phase Energy Meter IC

DATA SHEET

SEPTEMBER 2011

A Maxim Integrated Products Brand

GENERAL DESCRIPTION

The 71M6513 is a highly integrated system-on-chip SoC with an MPU core,

real-time clock (RTC), flash, and LCD driver. Our Single Converter

Technology® with a 21-bit delta-sigma ADC, six analog inputs, digital tem-

perature compensation, precision voltage reference, and 32-bit computation

engine (CE) supports a wide range of poly-phase metering applications with

very few low-cost external components. A 32kHz crystal time base for the

entire system and internal battery-backup support for RAM and RTC further

reduce system cost.

Maximum design flexibility is supported with multiple UARTs, I

C, a power-

fail comparator, a 5V LCD charge pump, up to 22 DIO pins, and an in-

system programmable flash. The device is offered in high (0.1%) and

standard (0.5%) accuracy versions for multifunction residential/commercial

meter applications requiring multiple voltage/current inputs and complex

LCD or DIO configurations.

A complete array of ICE and development tools, programming libraries and

reference designs enable rapid development and certification of meters that

meet most demanding worldwide electricity metering standards.

FEATURES

 Wh Accuracy < 0.1% Over 2,000:1

Current Range

 Exceeds IEC 62053/ANSIC 12.20

 Voltage Reference

< 10ppm/°C (71M6513H)

< 40ppm/°C (71M6513)

 Six Sensor Inputs—V

Referenced

 Auxiliary Analog Input for Neutral

Current

 Low Jitter Wh/VARh Pulse Outputs

 Pulse Count For Pulse Outputs

 Four-Quadrant Metering

 Phase Sequencing

 Line Frequency Count for RTC

 Digital Temperature Compensation

 Sag Detection

 Independent 32-Bit Compute Engine

 40-70Hz Line Frequency Range with

Same Calibration

 Phase Compensation (±7°)

 Battery Backup for RAM and RTC

 22mW at 3.3V, 7.2µW Backup

 Flash Memory Option with Security

 8-Bit MPU (80515)—One Clock

Cycle per Instruction

 LCD Driver (≤ 168 Pixels)

 High-Speed SSI Serial Output

 RTC for Time-of-Use Functions

 Hardware Watchdog Timer

 Up to 22 General-Purpose I/O Pins

 64KB Flash, 7KB RAM

 Two UARTs for IR and AMR

 100-Pin LQFP Package

MPU

RTC

TIMERS

XIN

XOUT

VREF

COM0..3

V3.3A V3.3D

VBAT

V2.5

VLCD

VBIAS

VDRV

SEG0..23

GNDA GNDD

SEG 24..27

DIO 0..11

SEG 32..41

DIO 12..21

ICE

LIVE

NEUTRAL

LOAD

88.88.8888

MISC

POWER

FAULT

Etc.

AMR

EEPROM

BATTERY

COMPARATOR

SENSE

DRIVE

SERIAL PORTS

OSC/PLL

CONVERTER

LCD DRIVER

DIO, PULSE

COMPUTE

ENGINE

FLASH

RAM

VOLTAGE REF

32 kHz

REGULATOR

5V BOOST

CT /COIL

POWER SUPPLY

TERIDIAN

71M6513

3/5V LCD

TEMP SENSOR

19-5360; Rev 3; 9/11

Single Converter Technology is a registered trademark of

Maxim Integrated Products, Inc.

Summary of content (104 pages)

PAGE 1
9-5360; Rev 3; 9/11 71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 GENERAL DESCRIPTION FEATURES The 71M6513 is a highly integrated system-on-chip SoC with an MPU core, real-time clock (RTC), flash, and LCD driver.
PAGE 2
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Table of Contents FEATURES ............................................................................................................................ 1 HARDWARE DESCRIPTION ................................................................................................................ 9 Hardware Overview ........................................................................................................
PAGE 3
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Physical Memory ....................................................................................................... 41 Oscillator ................................................................................................................... 42 Real-Time Clock (RTC).............................................................................................. 42 Comparators (V2, V3) ................
PAGE 4
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Constants.................................................................................................................. 67 Environment .............................................................................................................. 67 CE Calculations......................................................................................................... 68 CE RAM Locations ..................
PAGE 5
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 RESETZ.................................................................................................................... 95 COMPARATORS ...................................................................................................... 96 RAM AND FLASH MEMORY ..................................................................................... 96 FLASH MEMORY TIMING ...................................
PAGE 6
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Figure 34: Error Band for VREF over Temperature (High-Accuracy Parts) ..................................................................... 83 Figure 33: Connecting LCDs ...................................................................................................................................... 84 Figure 34: LCD Boost Circuit............................................................................
PAGE 7
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Table 39: The TCON Register .................................................................................................................. 33 Table 40: The TCON Bit Functions ........................................................................................................... 33 Table 41: The IRCON Register ..........................................................................................
PAGE 8
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 VREF IA VA IB VB IC VC V3P3A GNDA GNDA VBIAS ∆Σ ADC CONVERTER VBIAS MUX V3P3A VOLTAGE BOOST FIR FILTER + VREF V3 MUX CTRL EQU MUX_ALT GNDD FIR_LEN VREF CHOP_EN VREF_DIS TEMP CK32 VOLT REG MUX_DIV XIN OSC (32KHz) XOUT VDRV LCD_IBST LCD_BSTEN V3P3D VBAT CK32 MCK PLL RTCLK GNDD GNDD OSC_DIS V2P5 CK_EN CKTEST CKFIR 4.9MHz 4.
PAGE 9
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 HARDWARE DESCRIPTION Hardware Overview The 71M6513 single-chip polyphase meter integrates all primary functional blocks required to implement a solid-state electricity meter.
PAGE 10
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 The MUX_ALT bit requests an alternate multiplexer cycle. The bit may be asserted on any MPU cycle and may be subsequently de-asserted on any cycle including the next one. A rising edge on MUX_ALT will cause the Control Circuit to wait until the next multiplexer cycle and implement a single alternate cycle.
PAGE 11
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 With all switches set to the “B” position by applying the inverted CROSS signal, the output voltage is: Voutn – Voutp = G (Vinn – Vinp + Voff) = G (Vinn – Vinp) + G Voff, or Voutp – Voutn = G (Vinp – Vinn) - G Voff Thus, when CROSS is toggled, e.g.
PAGE 12
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Computation Engine (CE) The CE, a dedicated 32-bit RISC processor, performs the precision computations necessary to accurately measure energy. The CE calculations and processes include: • Multiplication of each current sample with its associated voltage sample to obtain the energy per sample (when multiplied with the constant sample time).
PAGE 13
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 EQU Watt & VAR Formula Inputs used from MUX sequence Mux State: Inputs used from alternate MUX sequence Mux State: 0 1 2 3 4 5 0 1 2 3 4 5 0 VA IA (1 element, 2W 1ø) IA VA IB VB IC VC TEMP VA V3 VC IC VC 1 VA(IA-IB)/2 (1 element, 3W 1ø) IA VA IB VB IC VC TEMP VA IB V3 VC VC 2 VA IA + VB IB (2 element, 3W 3 øDelta) IA VA IB VB IC VC TEMP VA V3 VB VC V
PAGE 14
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 1/2520.6Hz = 397µs IB 2/32768Hz = 61.04µs B VB A IC VC IA VA C 13/32768Hz = 397µs per mux cycle Figure 4: Samples in Multiplexer Cycle The end of each multiplexer cycle is signaled to the MPU by the CE_BUSY interrupt. At the end of each multiplexer cycle, status information, such as sag data and the digitized input signal, is available to the MPU.
PAGE 15
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 φ= t delay T ⋅ 360 o = t delay ⋅ f ⋅ 360 o Where f is the frequency of the input signal and tdelay is the sampling delay between voltage and current. In traditional meter ICs, sampling is accomplished by using two A/D converters per phase (one for voltage and the other one for current) controlled to sample simultaneously.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 80515 MPU Core 80515 Overview The 71M6513/6513H includes an 80515 MPU (8-bit, 8051-compatible) that processes most instructions in one clock cycle. Using a 5MHz clock results in a processing throughput of 5 MIPS. The 80515 architecture eliminates redundant bus states and implements parallel execution of fetch and execution phases.
PAGE 17
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 when the MPU executes a MOVX @Ri,A or MOVX @DPTR,A instruction. The MPU reads external data memory by executing a MOVX A,@Ri or MOVX A,@DPTR instruction (SFR USR2 provides the upper 8 bytes for the MOVX A,@Ri instruction). Clock Stretching: MOVX instructions can access fast or slow external RAM and external peripherals. The three low ordered bits of the CKCON register define the stretch memory cycles.
PAGE 18
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Internal Data Memory: The Internal data memory provides 256 bytes (0x00 to 0xFF) of data memory. The internal data memory address is always 1 byte wide and can be accessed by either direct or indirect addressing. The Special Function Registers occupy the upper 128 bytes. This SFR area is available only by direct addressing. Indirect addressing accesses the upper 128 bytes of Internal RAM.
PAGE 19
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Special Function Registers (Generic 80515 SFRs) Table 7 shows the location of the SFRs and the value they assume at reset or power-up.
PAGE 20
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Name USR2 Location 0xBF Reset value 0x00 Description User 2 Port, high address byte for MOVX@Ri IRCON 0xC0 0x00 Interrupt Request Control Register PSW 0xD0 0x00 Program Status Word WDCON 0xD8 0x00 Baud Rate Control Register (only WDCON.
PAGE 21
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Bit Symbol Function PSW.7 CV Carry flag PSW.6 AC Auxiliary Carry flag for BCD operations PSW.5 F0 General purpose Flag 0 available for user. Not to be confused with the F0 flag in the CESTATUS register. PSW.4 RS1 Register bank select control bits. The contents of RS1 and RS0 select the working register bank: RS1/RS0 Bank selected Location PSW.
PAGE 22
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Port Registers: The I/O ports are controlled by Special Function Registers P0, P1, and P2. The contents of the SFR can be observed on corresponding pins on the chip. Writing a ‘1’ to any of the ports (see Table 10) causes the corresponding pin to be at high level (V3P3), and writing a ‘0’ causes the corresponding pin to be held at low level (GND).
PAGE 23
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Register Alternative Name SFR Address R/W W R/W R 0xE8 WDI R/W R/W W INTBITS INT0…INT6 0xF8 R Description 1 – MOVX @DPTR,A moves A to Program Space (flash) @ DPTR. This bit is automatically reset after each byte written to flash. Writes to this bit are inhibited when interrupts are enabled. Bit 1 (FLSH_MEEN): Mass Erase Enable: 0 – Mass Erase disabled (default). 1 – Mass Erase enabled.
PAGE 24
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 WDCON[7] selects whether timer 1 or the internal baud rate generator is used. All UART transfers are programmable for parity enable, parity, 2 stop bits/1 stop bit and XON/XOFF options for variable communication baud rates from 300 to 38400 bps. Table 12 shows how the baud rates are calculated. Table 13 shows the selectable UART operation modes.
PAGE 25
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Serial Interface 1 Control Register (S1CON). The function of the serial port depends on the setting of the Serial Port Control Register S1CON. MSB LSB SM - SM21 REN1 TB81 RB81 TI1 RI1 Table 15: The S1CON register Bit S0CON.7 S0CON.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Bit Symbol S1CON.7 SM Function Sets the baud rate for UART1 SM Mode Description Baud Rate 0 A 9-bit UART variable 1 B 8-bit UART variable S1CON.5 SM21 Enables the inter-processor communication feature. S1CON.4 REN1 If set, enables serial reception. Cleared by software to disable reception. S1CON.3 TB81 The 9 transmitted data bit in Mode A.
PAGE 27
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Bit Symbol Function TMOD.7 TMOD.3 Gate If set, enables external gate control (pin int0 or int1 for Counter 0 or 1, respectively). When int0 or int1 is high, and TRX bit is set (see TCON register), a counter is incremented every falling edge on t0 or t1 input pin TMOD.6 TMOD.2 C/T Selects Timer or Counter operation. When set to 1, a Counter operation is performed.
PAGE 28
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Bit Symbol Function TCON.7 TF1 The Timer 1 overflow flag is set by hardware when Timer 1 overflows. This flag can be cleared by software and is automatically cleared when an interrupt is processed. TCON.6 TR1 Timer 1 Run control bit. If cleared, Timer 1 stops. TCON.5 TF0 Timer 0 overflow flag set by hardware when Timer 0 overflows.
PAGE 29
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Refreshing the WD Timer: The watchdog timer must be refreshed regularly to prevent the reset request signal from becoming active. This requirement imposes an obligation on the programmer to issue two instructions. The first instruction sets WDT and the second instruction sets SWDT. The maximum delay allowed between setting WDT and SWDT is 12 clock cycles.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Interrupt Priority 0 Register (IP0): MSB LSB -- WDTS IP0.5 IP0.4 IP0.3 IP0.2 IP0.1 IP0.0 Table 29: The IP0 Register (see also Table 45) Bit Symbol IP0.6 WDTS Function Watchdog timer status flag. Set when the watchdog timer was started. Can be read by software.
PAGE 31
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Interrupts The 80515 provides 11 interrupt sources with four priority levels. Each source has its own request flag(s) located in a special function register (TCON, IRCON, and SCON). Each interrupt requested by the corresponding flag can be individually enabled or disabled by the enable bits in SFRs IEN0, IEN1, and IEN2. External interrupts are the interrupts external to the 80515 core, i.e.
PAGE 32
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Special Function Registers for Interrupts: Interrupt Enable 0 register (IE0) MSB LSB EAL WDT ES0 ET1 EX1 ET0 EX0 Table 33: The IEN0 Register Bit Symbol Function IEN0.7 EAL EAL=0 – disable all interrupts IEN0.6 WDT Not used for interrupt control IEN0.5 - IEN0.4 ES0 ES0=0 – disable serial channel 0 interrupt IEN0.3 ET1 ET1=0 – disable timer 1 overflow interrupt IEN0.
PAGE 33
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Interrupt Enable 2 register (IE2) MSB LSB - - - - - - - ES1 Table 37: The IEN2 Register Bit Symbol IEN2.0 ES1 Function ES1=0 – disable serial channel 1 interrupt Table 38: The IEN2 Bit Functions Timer/Counter Control register (TCON) MSB LSB TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 Table 39: The TCON Register Bit Symbol Function TCON.7 TF1 Timer 1 overflow flag TCON.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Bit Symbol Function IRCON.7 - IRCON.6 - IRCON.5 IEX6 External interrupt 6 edge flag IRCON.4 IEX5 External interrupt 5 edge flag IRCON.3 IEX4 External interrupt 4 edge flag IRCON.2 IEX3 External interrupt 3 edge flag IRCON.1 IEX2 External interrupt 2 edge flag IRCON.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Note 3: After a reset from an in-circuit emulator, the IE_XFER flag may not be cleared because the CE may continue to run. The flags for the RTC_1SEC and the XFER_BUSY interrupts are located in the WDI SFR (address 0xE8).
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Interrupt Priority 0 Register (IP0) MSB LSB -- WDTS IP0.5 IP0.4 IP0.3 IP0.2 IP0.1 IP0.0 Table 46: The IP0 Register: Note: WDTS is not used for interrupt controls Interrupt Priority 1 Register (IP1) MSB LSB - - IP1.5 IP1.4 IP1.3 IP1.2 IP1.1 Table 47: The IP1 Register: IP1.x IP0.
PAGE 37
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Interrupt Sources and Vectors Table 50 shows the interrupts with their associated flags and vector addresses.
PAGE 38
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 DIO External Interrupt Flags Internal Interrupt Flags Logic and Polarity Selection Interrupt Control Re g i s t e r Interrupt Enable IEN0.7 IEN0.0 Priority Assignment IE0 IEN2.0 RI1 UART1 (optical) IP1.0/ IP0.0 Polling Se quen ce Source >=1 TI1 IEN0.1 TF0 Timer 0 IEN1.1 I2FR Comparators INT2 IP1.1/ IP0.1 IRCON.1 IEN0.2 DIO IE1 I3FR CE_BUSY IEN1.2 INT3 IP1.2/ IP0.2 IRCON.2 IEN0.
PAGE 39
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 On-Chip Resources DIO Ports The 71M6513/6513H includes up to 22 pins of general purpose digital I/O. 18 of these pins are dual function and can alternatively be used as LCD drivers. Figure 8 shows a block diagram of the DIO section. On reset or power-up, all DIO pins are inputs until they are configured for the desired direction.
PAGE 40
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Each pin declared as DIO can be configured independently as an input or output with the bits of the DIO_DIRn registers. Table 51 lists the direction registers and configurability associated with each group of DIO pins. Table 52 shows the configuration for a DIO pin through its associated bit in its DIO_DIR register.
PAGE 41
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Physical Memory Data bus address space is allocated to on-chip memory as shown in Table 54.
PAGE 42
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Oscillator The oscillator drives a standard 32.768kHz watch crystal (see Figure 9). Crystals of this type are accurate and do not require a high current oscillator circuit. The oscillator in the 71M6513 Power Meter IC has been designed specifically to handle watch crystals and is compatible with their high impedance and limited power handling capability.
PAGE 43
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 LCD Drivers The 71M6513 contains 24 dedicated LCD segment drivers and 18 multi-purpose pins which may be configured as additional LCD segment drivers (see I/O RAM register LCD_NUM). The 71M6513/6513H is capable of driving between 96 to 168 pixels of LCD display with 25% duty cycle. At seven segments per digit, the LCD can be designed for 13 to 24 digits for display.
PAGE 44
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 UART (UART0) and Optical Port (UART1) The 71M6513/6513H includes an interface to implement an IR or optical port. The pin OPT_TX is designed to directly drive an external LED for transmitting data on an optical link (low-active). The pin OPT_RX, also low-active, is designed to sense the input from an external photo detector used as the receiver for the optical link.
PAGE 45
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 V1 V3P3 V3P3-10mV WDT disabled V3P3 400mV Normal operation, WDT enabled when (V1 < VBIAS) the battery is enabled VBIAS Battery or reset mode 0V Figure 11: Voltage Range for V1 Internal Clocks and Clock Dividers All internal clocks are based on the watch crystal frequency (CK32 = 32,768Hz) applied to the XIN and XOUT pins. The PLL multiplies this frequency by 150 to 4.9152MHz.
PAGE 46
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 2 Note: Clock stretching and multi-master operation are not supported for the I C interface. Status Bit Name Read/ Write Reset State Polarity Description 7 ERROR R 0 Positive 1 when an illegal command is received. 6 BUSY R 0 Positive 1 when serial data bus is busy. 5 RX_ACK R 1 Negative 0 indicates that the EEPROM sent an ACK bit.
PAGE 47
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Battery The VBAT pin provides an input for an external battery that can be used to support the crystal oscillator, RTC, the WD_OVF bit and XRAM in the absence of the main power supply. If the battery is not used, the VBAT pin should be connected to V3P3. Internal Voltages (VBIAS, VBAT, V2P5) The 71M6513 requires two supply voltages, V3P3A, for the analog section, and V3P3D, for the digital section.
PAGE 48
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 out in 35 cycles and contains a leading flag bit. Figure 13 in the System Timing Section illustrates the RTM output format. RTM is low when not in use. SSI Interface: A high-speed serial interface with handshake capability is available to send a contiguous block of CE data to an external data logger or DSP.
PAGE 49
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 FUNCTIONAL DESCRIPTION Theory of Operation The energy delivered by a power source into a load can be expressed as: t E = ∫ V (t ) I (t )dt 0 Assuming phase angles are constant, the following formulae apply:  P = Real Energy [Wh] = V * A * cos φ* t  Q = Reactive Energy [VARh] = V * A * sin φ * t  S = Apparent Energy [VAh] = P2 + Q2 For a practical meter, not only voltage and current amplitudes
PAGE 50
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 System Timing Summary Figure 13 summarizes the timing relationships between the input MUX states, the CE_BUSY signal, and the two serial output streams. In this example, MUX_DIV=0 (six mux states) and FIR_LEN = 0 (2 CK32 cycles).
PAGE 51
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 CK32 MUX_SYNC CKTEST 30 31 0 FLAG 1 30 31 0 FLAG 1 30 31 SIG N FLAG 1 LSB 0 SIG N 31 LSB 30 SIG N LSB FLAG RTM DATA0 (32 bits) RTM DATA1 (32 bits) RTM DATA2 (32 bits) RTM DATA3 (32 bits) 1 SIG N 0 LSB TMUXOUT/RTM Figure 14: RTM Output Format If SSI_CKGATE =1 If 16bit fields If SSI_CKGATE =1 If 32bit fields SFR (Output) SRDY (Input) SCLK (Output) 31 SSDATA (Output) 30 1
PAGE 52
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Data Flow The data flow between CE and MPU is shown in Figure 17. In a typical application, the 32-bit compute engine (CE) sequentially processes the samples from the voltage inputs on pins IA, VA, IB, VB, IC, and VC performing calculations to 2 2 measure active power (Wh), reactive power (VARh), A h, and V h for four-quadrant metering.
PAGE 53
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 PULSES W (DIO6) WSUM VARSUM VAR (DIO7) DISPLAY (memory-mapped LCD segments) APULSEW SERIAL (UART0/1) APULSER EXT_PULSE DATA ADC MPU EEPROM (I2C) SAMPLES CE_BUSY CE Mux Ctrl. DIO XFER_BUSY INTERRUPTS I/O RAM (CONFIGURATION RAM) Figure 18: MPU/CE Communication (Functional) The MPU will wait for the CE to signal that fresh data is ready (the XFER interrupt).
PAGE 54
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Power-Up: After power-up, the 71M6513/6513H is in reset as long as V1 < VBIAS. As soon as V1 exceeds VBIAS, the reset timer is started which takes the MPU out of reset after 4100 oscillator cycles (see Figure 20). The MPU then initiates its preboot phase lasting 32 cycles. The supply current will be low but not zero during power-up.
PAGE 55
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Temperature Compensation Internal Compensation: The internal voltage reference is calibrated during device manufacture. Trim data is stored in on-chip fuses. For the 71M6513, the temperature coefficients TC1 and TC2 are given as constants that represent typical component behavior.
PAGE 56
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Accumulation Interval m MUX cycle 2 MUX cycle 1 MUX cycle 3 Accumulation Interval m+2 Accumulation Interval m+1 MUX cycle n MUX cycle 1 Reversed Positive MUX cycle n MUX cycle 1 Reversed Positive Chop Polarity Positive Reversed Positive Reversed Positive Reversed Positive CE_BUSY interrupt (falling edge) XFER_BUSY interrupt (falling edge) Figure 21: Chop Polarity w/ Automatic Chopping If
PAGE 57
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 XFER_BUSY interrupt. After these first two cycles, CHOP_EN returns to 11 (automatic toggle). The value of CHOP_EN, when set after the XFER_BUSY interrupt, is in force for the entire following multiplexer cycle. When using this sequence, the alternate multiplexer cycle is toggled between positive and reversed connection resulting in accurate temperature measurement.
PAGE 58
A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Program Security When enabled, the security feature limits the ICE to global flash erase operations only. All other ICE operations are blocked. This guarantees the security of the user’s MPU and CE program code. Security is enabled by MPU code that is executed in a 32 cycle preboot interval before the primary boot sequence begins.
PAGE 59
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 FIRMWARE INTERFACE I/O RAM MAP – In Numerical Order ‘Not Used’ bits are blacked out and contain no memory and are read by the MPU as zero. RESERVED bits are in use and should not be changed.
PAGE 60
71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Name Addr Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 SSI_FPOL SSI_RDYEN SSI_RDYPOL RTM Probes: RTM0 RTM1 RTM2 RTM3 2060 2061 2062 2063 RTM0[7:0] RTM1[7:0] RTM2[7:0] RTM3[7:0] Synchronous Serial Interface: SSI 2070 S S I _ B E G 2071 SSI_END 2072 SSI_EN SSI_10M SSI_CKGATE SSI_FSIZE[1:0] SSI_BEG[7:0] SSI_END[7:0] Fuse Selection Registers: TRIMSEL TRIM 20FD 20FF TRIMSEL[7:0] TRIM[7:0]
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 I/O RAM (Configuration RAM) – Alphabetical Order Many functions of the chip can be controlled via the I/O RAM (Configuration RAM). The CE will also take some of its parameters from the I/O RAM. Bits with a W (write) direction are written by the MPU into I/O RAM. Typically, they are initially stored in flash memory and copied to the I/O RAM by the MPU.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Name Location [Bit(s)] Dir Description DIO_0[7:0] DIO_1[7:0] DIO_2[5:0] SFR 80 SFR 90 SFR A0[5:0] R/W R/W R/W Port 0 Port 1 Port 2 DIO_EEX 2008[4] R/W When set, converts DIO4 and DIO5 to interface with external EEPROM. DIO4 becomes SCK and DIO5 becomes bi-directional SDA. LCD_NUM must be less than 18. DIO_PV 2008[2] R/W Causes VARPULSE to be output on DIO7, if DIO7 is configured as output.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Name Location [Bit(s)] Dir Description FLSH_PGADR SFR B7[7:1] W Flash Page Erase Address FLSH_PGADR[6:0] – Flash Page Address (page 0 thru 127) that will be erased during the Page Erase cycle. (default = 0x00). Must be re-written for each new Page Erase cycle. FLSH_PWE SFR B2[0] R/W Program Write Enable 0 – MOVX commands refer to XRAM Space, normal operation (default).
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Name Location [Bit(s)] Dir Description LCD_NUM[4:0] 2020[4:0] R/W Number of dual-purpose LCD/DIO pins to be configured as LCD. This number can be between 0 and 18. The first dual-purpose pin to be used as LCD is SEG41/DIO21. If LCD_NUM = 2, SEG41 and SEG 40 will be configured as LCD. The remaining SEG39 to SEG24 will be configured as DIO19 to DIO4.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Name Location [Bit(s)] Dir Description PRE_SAMPS[1:0] 2001[7:6] R/W Together w/ SUM_CYCLES, this value determines the number of samples in one sum cycle between XFER interrupts for the CE. Number of samples = PRE_SAMPS*SUM_CYCLES.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Name Location [Bit(s)] SSI_BEG[7:0] SSI_END[7:0] 2071[7:0] 2072[7:0] SUM_CYCLES [5:0] 2001[5:0] TMUX[3:0] 2000[3:0] R/W Selects one of 16 inputs for TMUXOUT. 0 – DGND (analog) 1 – IBIAS (analog) 2 – PLL_2.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 CE Program and Environment CE Program The CE program is supplied by Teridian as a data image that can be merged with the MPU operational code for meter applications. Typically, the CE program covers most applications and does not need to be modified. Formats All CE words are 4 bytes. Unless specified otherwise, they are in 32-bit two’s complement (-1 = 0xFFFFFFFF).
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 During operation, the MPU is in charge of controlling the multiplexer cycles, for example by inserting an alternate multiplexer sequence at regular intervals using MUX_ALT. This enables temperature measurement. The polarity of CHOP must be altered for each sample. It must also alternate for each alternate multiplexer reading.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 CE Front End Data (Raw Data) Access to the raw data provided by the AFE is possible by reading addresses 0 through 7, as listed below.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 CE Address 0x31 0x32 Name Default SAG_THR SAG_CNT Description +23,930,000 (0x16D23AA) Meter voltage inputs must be above this threshold to prevent sag alarms. -9 LSB = VMAX * 7.879810 V. For example, if a sag threshold of 80V RMS is desired, 2 SAG _ THR = VMAX ⋅807.8798 ⋅10 −9 Number of consecutive voltage samples below SAG_THR before a sag alarm is declared (80*397µs = 31.8ms).
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M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 CE Address Name Description 0x33 FREQSEL Selected phase for the frequency monitor, the phase-to-phase voltage measurements, and voltage zero crossings: Phase A: 0 (default) Phase B: 1 Phase C: 2 0x41 FREQ_X Fundamental frequency. LSB 0x4A I0SQSUM_X 0x4B I1SQSUM_X 0x4C I2SQSUM_X ≡ FS ≈ 0.587 ⋅ 10 −6 Hz 32 2 The sum of squared current samples from each element. LSB = 9.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 CE Address Name FREQU_SEL = 0 FREQU_SEL = 1 FREQU_SEL = 2 Phase lag from VA to VB. Phase lag from VB to VC. Phase lag from VC to VA. PH_AtoB_X*360/NACC+2.4 PH_AtoB_X*360/NACC+2.4 PH_AtoB_X*360/NACC-4.8 Phase lag from VA to VC. Phase lag from VB to VA. Phase lag from VC to VB. Angle in degrees PH_AtoC_X*360/NACC+4.8 PH_AtoC_X *360/NACC-2.4 PH_AtoC_X *360/NACC-2.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 CE Address Name Default 0x11 TEMP_NOM 0 0x30 DEGSCALE 22721 Description During calibration, the value of TEMP_RAW_X should be placed in TEMP_NOM. Scale factor for TEMP_X. TEMP_X = -DEGSCALE*2-22*(TEMP_RAW_X-TEMP_NOM). Should be 15 or 0. When 15, causes the CE to ignore internal temperature compensation and permits the MPU to control GAIN_ADJ.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Pulse Generation Input variables: The combination of the PULSE_SLOW and PULSE_FAST parameters control the speed of the pulse rate. The default values of 1 and 1 will maintain the original pulse rate given by the Kh equation. WRATE controls the number of pulses that are generated per measured Wh and VARh quantities. The lower WRATE it is the slower is the pulse rate for measured power quantity.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 CE Address 0x28 Name PULSE_SLOW Default 1 Description When PULSE_SLOW > 0, the pulse generator input is reduced 64x. When PULSE_FAST > 0, the pulse generator input is increased 16x. These two parameters control the pulse gain factor X (see table below). Allowed values are either 1 or –1. X PULSE_SLOW PULSE_FAST 2 -1 -1 6 -1 1 1.5 * 2 = 0.09375 -4 1 -1 1.5 1 (default) 1 (default) 1.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 CE Calibration Parameters The table below lists the parameters that are typically entered to effect calibration of meter accuracy.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Other CE Parameters The table below shows CE parameters used for suppression of noise due to scaling and truncation effects as well as scaling factors. CE Address Name Default 0x2F QUANT 0 This parameter is added to the Watt calculation to compensate for input noise and truncation. -9 LSB=(VMAX*IMAX / In_8) *1.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 90 Deg 150 Deg % Error 3 270 Deg 10 25 1 30 0.3 100 0.1 1 10 200 100 A 1000 Figure 25: VARh Accuracy for 0.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 APPLICATION INFORMATION Connection of Sensors (CT, Resistive Shunt, Rogowski Coil) Figures 27 through 30 show how resistive dividers, current transformers, restive shunts, and Rogowski coils are connected to the voltage and current inputs of the 71M6513. The analog input pins of the 71M6511 are designed for sensors with low source impedance.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Temperature Compensation and Mains Frequency Stabilization for the RTC The accuracy of the RTC depends on the stability of the external crystal. Crystals vary in terms of initial accuracy as well as in terms of behavior over temperature. The flexibility provided by the MPU allows for compensation of the RTC using the substrate temperature.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 When applying the inverted coefficients, a curve (see Figure 30) will result that effectively neutralizes the original crystal characteristics. The frequencies were calculated using the fit coefficients as follows: a b c   f = f nom ⋅ 1 + 6 + T 6 + T 2 6  10 10   10 32768.5 32768.4 32768.3 32768.2 32768.1 32768 32767.9 32767.8 crystal 32767.7 curve fit 32767.6 inverse curve 32767.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Temperature Compensation For the 71M6513 (regular accuracy parts), the temperature coefficients TC1 and TC2 are given as constants that represent 2 typical component behavior (in µV/°C ). TC1 and TC2 allow compensation for variations of the reference voltage to within ±40 PPM/°C.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Error Band (PPM) over Temperature (°C) 2800 2400 2000 1600 1200 800 400 0 -400 -800 -1200 -1600 -2000 -2400 -2800 ±40 PPM/°C ±40 PPM/°C -40 -20 0 20 40 60 80 Figure 31: Error Band for VREF over Temperature (Regular-Accuracy Parts) Error Band (PPM) over Temperature (°C) 1000 +10 PPM/°C 800 600 400 200 0 -200 -400 -600 -10 PPM/°C -800 -1000 -40 -20 0 20 40 60 80 Figure 32: Error Band fo
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 For best rejection of electromagnetic interference, connect the crystal body and the ground terminals of the two crystal capacitors to GNDD through a ferrite bead. No external resistor should be connected across the crystal, since the oscillator is self-biasing. Connecting LCDs The 71M6513 has a LCD controller on-chip capable of controlling static or multiplexed LCDs.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 V3P3 71M6513 LCD_BSTEN VDRV V3P3 5VDC 5V LCD VLCD Contrast LCD_FS ON/OFF LCD_EN segments LCD type LCD_MODE commons Figure 34: LCD Boost Circuit Connecting I2C EEPROMs I2C EEPROMs or other I2C compatible devices should be connected to the DIO pins DIO4 and DIO5, as shown in Figure 35. Pull-up resistors of roughly 3kΩ to V3P3 should be used for both SCL and SDA signals.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 V3P3 71M651X R1 = 100kΩ RX VIN Figure 36: Interfacing RX to a 0-5V Signal Figure 36 shows how a 5V signal from an external device can be safely interfaced to the RX pin.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Optical Interface The pins OPT_TX and OPT_RX can be used for a regular serial interface, e.g. by connecting a RS_232 transceiver, or they can be used to directly operate optical components, e.g. an infrared diode and phototransistor implementing a FLAG interface. Figure 37 shows the basic connections. The OPT_TX pin becomes active when the I/O RAM register OPT_TXDIS is set to 0.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 71M6513 V3P3 V3P3 10Ω 200Ω R1 RESETZ R2 C1 1nF Pushbutton DGND Figure 39: External Components for RESETZ Connecting the V3 Pin The following should be noted when connecting the V3 pin: 1) If the V3 pin is unused it should be left floating or terminated to the VREF pin. 2) If the V3 pin is used as a comparator input the digital input voltage applied to V3 should be limited to VBIAS ±0.9V.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Flash Programming Operational or test code can be programmed into the flash memory using either an in-circuit emulator or the Flash Download Board Module (FDBM) available from Teridian. The flash programming procedure uses the E_RTS, E_RXTX, and E_TCLK pins.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 SPECIFICATIONS Electrical Specifications ABSOLUTE MAXIMUM RATINGS Supplies and Ground Pins: −0.5V to 4.6V 0V to 0.5V -0.5V to 7V -0.5V to 4.6V -0.5V to +0.5V V3P3D, V3P3A | V3P3D - V3P3A | VLCD VBAT GNDD Analog Output Pins: -1mA to 1mA, -0.5 to V3P3A+0.5V -1mA to 1mA, -0.5V to 3.0V VREF, VBIAS V2P5 Analog Input Pins: IA, VA, IB, VB, IC, VC, V2, V3 XIN, XOUT RX -0.5V to V3P3A+0.5V -0.5V to 3.0V -0.5V to 3.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 RECOMMENDED OPERATING CONDITIONS PARAMETER CONDITION MIN TYP 3.3V Supply Voltage † (V3P3A, V3P3D) Normal Operation 3.0 3.3 Battery Backup VLCD VBAT Operating Temperature † UNIT 3.6 V 0 3.45 V 2.9 5.5 V No Battery Battery Backup MAX Externally Connect to V3P3D 2.0 3.8 V -40 85 ºC V3P3A and V3P3D should be shorted together on the circuit board.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 SUPPLY CURRENT PARAMETER V3P3A + V3P3D + VLCD current V3P3A current V3P3D current VLCD current VBAT current V3P3D current V3P3A + V3P3D current 1 CONDITION Normal Operation, V3P3A=V3P3D=VLCD=3.3V CKMPU=614kHz VBAT=3.6V No flash memory write MIN TYP 6.4 9.5 mA 4.3 mA 2.5 4.8 mA 0.2 0.4 mA 300 nA -300 2.9 3.6 5.1 Power save/sleep mode V3P3A=V3P3D=VLCD=3.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 VREF, VBIAS Unless otherwise specified, VREF_DIS=0 PARAMETER VREF output voltage, VNOM(25) VREF chop step VREF output impedance A VNOM definition CONDITION Ta = 22ºC MIN 1.193 TYP 1.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 ADC CONVERTER, VDD REFERENCED FIR_LEN=0, VREF_DIS=0, VDDREFZ=0 PARAMETER Recommended Input Range (Vin-V3P3A) Voltage to Current Crosstalk: CONDITION MAX 250 UNIT mV peak Vin = 200mV peak, 65Hz, on VA, VB, or VC IC Vin=65Hz, 64kpts FFT, BlackmanHarris window Vin=65Hz 1 10 μV/V 90 dB dB kΩ 1 -10 -75 -90 40 Vin=65Hz FIR_LEN=0 1.7 Ω/°C 355 nV/LSB LSB +884736 Vin=200mV peak, 65Hz V3P3A=3.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 LCD BOOST PARAMETER VDRV Frequency VDRV Sink Current VDRV Source Current VLCD Target Voltage CONDITION Vol=1.5V Voh=1.5V MIN TYP OSC/2 1.2 1.2 4.5 VLCD=5.0V, LCD_FS=1F, LCD_MODE=0,1,2,3 LCD_BSTEN=1 VLCD Input Current MAX 2.75 2.6 5.5 UNIT Hz mA mA V 450 μA MAX 0 0.2 UNIT V V +10 +10 % % +15 +10 30 % % kΩ LCD DRIVERS Applies to all COM and SEG pins. Unless otherwise stated, VLCD=5.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 COMPARATORS PARAMETER Offset Voltage V1-VBIAS V2-VBIAS V3-VBIAS Hysteresis Current V1 V2 V3 Response Time V1 V2 V3 WD Disable Threshold (V1-V3P3A) CONDITION Vin = VBIAS - 100mV MIN TYP MAX UNIT -20 -20 -20 15 15 15 mV mV mV 0.8 0.8 0.8 1.2 1.2 1.2 μA μA μA 2 0.5 0.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 Recommended External Components NAME FROM TO C1 V3P3A AGND C2 V3P3D XTAL FUNCTION VALUE UNIT Bypass capacitor for 3.3V supply ≥0.1±20% µF DGND Bypass capacitor for 3.3V supply ≥0.1±20% µF XIN XOUT 32.768kHz crystal. Electrically similar to ECS ECX-3TA series 32.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 Packaging Information 100-Pin LQFP PACKAGE OUTLINE (Bottom View) 15.7(0.618) 16.3(0.641) 1 15.7(0.618) 16.3(0.641) Top View 13.8(0.543) 14.2(0.559) 0.05(0.002) 0.15(0.006) 1.40(0.055) 1.60(0.063) 0.60(0.024) TYP. 0.18(0.007) 0.27(0.011) 0.50(0.0197)TYP. Side View Notes: Controlling dimensions are in mm.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 76 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 TERIDIAN 71M6513-IGT/71M6513H-IGT GNDD RESETZ V2P5 VBAT RX SEG31/DIO11 SEG30/DIO10 SEG29/DIO9 SEG28/DIO8 SEG41/DIO21 SEG40/DIO20 SEG39/DIO19 SEG27/DIO7 SEG26/DIO6 SEG25/DIO5 SEG24/DIO4 SEG23 SEG22 SEG21 SEG20 NC SEG19 SEG18 SEG17 SEG16 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 26 27
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Pin Descriptions Power/Ground Pins Name Pin # GNDA 76,91 Type Description P Analog ground: This pin should be connected directly to the analog ground plane. 1, 40, 75 P Digital ground: This pin should be connected directly to the digital ground plane. 77 P Analog power supply: A 3.3V analog power supply should be connected to this pin. 9 P Digital power supply: A 3.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET SEPTEMBER 2011 Digital Pins Name DIO_3, DIO_2, DIO_1, DIO_0 COM3, COM2, COM1, COM0 SEG0…SEG2, SEG8…SEG23 SEG24/DIO4… ……. SEG41/DIO21 Pin # 21 20 19 18 25 24 23 22 Type Circuit I/O 3, 4 O 5 LCD Common Outputs: These 4 pins provide the select signals for the LCD display. See pinout O 5 Dedicated LCD Segment Output.
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71M6513/71M6513H 3-Phase Energy Meter IC A Maxim Integrated Products Brand DATA SHEET AUGUST 2011 I/O Equivalent Circuits: V3P3D V3P3D V3P3A 110K Digital Input Pin CMOS Input LCD SEG Output Pin LCD Driver from internal reference VREF Pin GNDD GNDD Digital Input Equivalent Circuit Type 1: Standard Digital Input or pin configured as DIO Input with Internal Pull-Up GNDA LCD Output Equivalent Circuit Type 5: LCD SEG or pin configured as LCD SEG VREF Equivalent Circuit Type 9: VREF V3P3D V3P3A V3P3D
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET SEPTEMBER 2011 ORDERING INFORMATION ORDERING NUMBER PACKAGE MARKING 71M6513-IGT/F 71M6513-IGT 71M6513 100-pin lead-free LQFP, 0.5% accuracy, T&R 71M6513-IGTR/F 71M6513-IGT 71M6513H 100-pin lead-free LQFP, 0.1% accuracy 71M6513H-IGT/F 71M6513H-IGT 71M6513H-IGTR/F 71M6513H-IGT PART DESCRIPTION 71M6513 100-pin lead-free LQFP, 0.5% accuracy 71M6513H 100-pin lead-free LQFP, 0.
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A Maxim Integrated Products Brand 71M6513/71M6513H 3-Phase Energy Meter IC DATA SHEET AUGUST 2011 Revision History (Continued) Revision Date 2.4 8/17/2007 2.5 8/12/2008 2.6 12/10 Description Removed all references to ROM versions. Removed reference to 3rd UART in “Hardware Overview” using bit-bang technique. Added note stating that “bitbanging” of DIO4/5 is discouraged. Added “A 1,000pF capacitor to GND should be connected to this pin” for VBIAS in Analog Pin Descriptions.