Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller EDIP 40 8-Bit 16 MHz I/O number 32

1 of 19 REV: 070706

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata

FEATURES

 8-Bit 8051-Compatible Microcontroller

Adapts to Task at Hand

8 or 32 kbytes of Nonvolatile RAM for

Program and/or Data Memory Storage

Initial Downloading of Software in End

System via On-Chip Serial Port

Capable of Modifying Its Own Program

and/or Data Memory in End Use

 Crashproof Operation

Maintains All Nonvolatile Resources for 10

Years in the Absence of V

at Room

Temperature

Power-Fail Reset

Early Warning Power-Fail Interrupt

Watchdog Timer

 Software Security Feature

Executes Encrypted Software to Prevent

Unauthorized Disclosure

 On-Chip, Full-Duplex Serial I/O Ports

 Two On-Chip Timer/Event Counters

 32 Parallel I/O Lines

 Compatible with Industry Standard 8051

Instruction Set and Pinout

 Optional Permanently Powered Real-Time

Clock (DS5000T)

PIN ASSIGNMENT

DESCRIPTION

The DS5000(T) Soft Microcontroller Module is a fully 8051-compatible 8-bit CMOS microcontroller that

offers “softness” in all aspects of its application. This is accomplished through the comprehensive use of

nonvolatile technology to preserve all information in the absence of system V

. The internal

program/data memory space is implemented using either 8 or 32 kbytes of nonvolatile CMOS SRAM.

Furthermore, internal data registers and key configuration registers are also nonvolatile. An optional real-

time clock (RTC) gives permanently powered timekeeping. The clock keeps time to a hundredth of a

second using an on-board crystal.

Note: This data sheet provides ordering information, pinout, and electrical specifications. Refer to the

Secure Microcontroller User’s Guide

for operating information.

DS5000(T)

Soft Microcontroller Module

www.maxim-ic.com

1P1.0

2P1.1

3P1.2

4P1.3

5P1.4

6P1.5

7P1.6

8P1.7

9RST

10RXD P3.0

11TXD P3.1

12INT0 P3.2

13INT1 P3.3

14T0 P3.4

15T1 P3.5

16WR P3.6

17RD P3.7

18XTAL2

19XTAL1

20GND

P0.0 AD039

P0.1 AD138

P0.2 AD237

P0.3 AD336

P0.4 AD435

P0.5 AD534

P0.6 AD633

P0.7 AD732

LE30

PSEN29

P2.7 A1528

P2.6 A1427

P2.5 A1326

P2.4 A1225

P2.3 A1124

P2.2 A1023

P2.1 A922

P2.0 A821

40-Pin Enca

sulated Packa

DS5000(T)

Summary of content (19 pages)

PAGE 1
DS5000(T) Soft Microcontroller Module www.maxim-ic.
PAGE 2
DS5000(T) ORDERING INFORMATION RAM SIZE (kB) MAX CRYSTAL SPEED (MHz) TIMEKEEPING? DS5000-32-16 32 16 No DS5000-32-16+ 32 16 No DS5000T-32-16 32 16 Yes DS5000T-32-16+ 32 16 Yes PART + Denotes a lead-free package.
PAGE 3
DS5000(T) PIN DESCRIPTION PIN NAME 1–8 P1.0–P1.7 9 RST Active-High Reset Input. A logic 1 applied to this pin will activate a reset state. This pin is pulled down internally so this pin can be left unconnected if not used. 10 P3.0/RXD General-Purpose I/O Port Pin 3.0/Receive Signal for On-Board UART. This pin should not be connected directly to a PC COM port. 11 P3.1/TXD General-Purpose I/O Port Pin 3.1/Transmit Signal for On-Board UART.
PAGE 4
DS5000(T) INSTRUCTION SET The DS5000(T) executes an instruction set which is object code-compatible with the industry standard 8051 microcontroller. As a result, software development packages that have been written for the 8051, including cross-assemblers, high-level language compilers, and debugging tools, are compatible with the DS5000(T). A complete description for the DS5000(T) instruction set is available in Secure Microcontroller User’s Guide.
PAGE 5
DS5000(T) DS5000(T) LOGICAL ADDRESS SPACES Figure 2 PROGRAM LOADING The Program Load Modes allow initialization of the NV RAM Program/Data Memory. This initialization may be performed in one of two ways: 1. Serial Program Loading that can perform Bootstrap Loading of the DS5000(T). This feature allows the loading of the application program to be delayed until the DS5000(T) is installed in the end system.
PAGE 6
DS5000(T) PROGRAM LOADING CONFIGURATIONS Figure 3 Table 1 summarizes the selection of the available Parallel Program Load cycles. The timing associated with these cycles is illustrated in the electrical specs. SERIAL BOOTSTRAP LOADER The Serial Program Load Mode is the easiest, fastest, most reliable, and most complete method of initially loading application software into the DS5000(T) nonvolatile RAM. Communication can be performed over a standard asynchronous serial communications port.
PAGE 7
DS5000(T) COMMAND C D F K L R T U V W Z P G FUNCTION Return CRC-16 checksum of embedded RAM Dump Intel hex file Fill embedded RAM block with constant Load 40-bit encryption key Load Intel hex file Read MCON register Trace (echo) incoming Intel hex data Clear security lock Verify embedded RAM with incoming Intel hex Write MCON register Set security lock Put a value to a port Get a value from a port PARALLEL PROGRAM LOAD CYCLES Table 1 MODE RST PSEN PROG EA P2.7 P2.6 P2.
PAGE 8
DS5000(T) A typical parallel loading session would follow this procedure. First, set the contents of the MCON register with the correct range and partition only if using expanded programming cycles. Next, the encryption registers can be loaded to enable encryption of the program/data memory (not required). Then, program the DS5000(T) using either normal or expanded program cycles and check the memory contents using Verify cycles.
PAGE 9
DS5000(T) ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin Relative to Ground…………………………………………………….-0.3V to +7.0V Operating Temperature…………………………………………………………………….….0°C to +70°C Storage Temperature………………………………………………………………………...-40°C to +70°C Soldering Temperature.…………………………………………See IPC/JEDEC J-STD-020 Specification This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied.
PAGE 10
DS5000(T) AC CHARACTERISTICS: EXPANDED BUS MODE TIMING SPECIFICATIONS # PARAMETER 1 (tA=0°C to 70°C; VCC=5V ± 5%) SYMBOL MIN MAX UNITS Oscillator Frequency 1/tCLK 1.0 16 MHz 2 ALE Pulse Width tALPW 2tCLK -40 ns 3 Address Valid to ALE Low tAVALL tCLK -40 ns 4 Address Hold After ALE Low tAVAAV tCLK -35 ns 5 ALE Low to Valid Instr. In 6 ALE Low to PSEN Low tALLPSL tCLK -25 ns 7 PSEN Pulse Width tPSPW 3tCLK -35 ns 8 PSEN Low to Valid Instr. In 9 Input Instr.
PAGE 11
DS5000(T) EXPANDED PROGRAM MEMORY READ CYCLE EXPANDED DATA MEMORY READ CYCLE 11 of 19
PAGE 12
DS5000(T) EXPANDED DATA MEMORY WRITE CYCLE EXTERNAL CLOCK TIMING 12 of 19
PAGE 13
DS5000(T) AC CHARACTERISTICS (cont'd) EXTERNAL CLOCK DRIVE # PARAMETER 28 External Clock High Time 29 (tA=0°C to 70°C; VCC=5V ± 5%) SYMBOL MIN @ 12 MHz @ 16 MHz tCLKHPW 20 15 ns ns External Clock Low Time @ 12 MHz @ 16 MHz tCLKLPW 20 15 ns ns 30 External Clock Rise Time @ 12 MHz @ 16 MHz tCLKR 20 15 ns ns 31 External Clock Fall Time @ 12 MHz @ 16 MHz tCLKF 20 15 ns ns AC CHARACTERISTICS (cont'd) SERIAL PORT TIMING - MODE 0 # PARAMETER 35 MAX UNITS (tA=0°C to 70°C; VCC=5V ±
PAGE 14
DS5000(T) AC CHARACTERISTICS (cont'd) POWER CYCLING TIMING (tA=0°C to 70°C; VCC=5V ± 5%) # PARAMETER SYMBOL MIN tF 40 32 Slew Rate from VCCmin to 3.
PAGE 15
DS5000(T) AC CHARACTERISTICS (cont'd) PARALLEL PROGRAM LOAD TIMING # PARAMETER 40 (tA=0°C to 70°C; VCC=5V ± 5%) SYMBOL MIN MAX UNITS Oscillator Frequency 1/tCLK 1.0 12.0 MHz 41 Address Setup to PROG Low tAVPRL 0 42 Address Hold after PROG High tPRHAV 0 43 Data Setup to PROG Low tDVPRL 0 44 Data Hold after PROG High tPRHDV 0 45 P2.7, 2.6, 2.
PAGE 16
DS5000(T) PARALLEL PROGRAM LOAD TIMING (test frequency=1MHz; tA=25°C) CAPACITANCE PARAMETER SYMBOL MIN TYP MAX UNITS Output Capacitance CO 10 pF Input Capacitance CI 10 pF 16 of 19 NOTES
PAGE 17
DS5000(T) DS5000(T) TYPICAL ICC VS.
PAGE 18
DS5000(T) NOTES: 1. All voltages are referenced to ground. 2. Maximum operating ICC is measured with all output pins disconnected; XTAL1 driven with tCLKR, tCLKF = 10 ns, VIL = 0.5V; XTAL2 disconnected; EA = RST = PORT0 = VCC. 3. Idle mode ICC is measured with all output pins disconnected; XTAL1 driven with tCLKR, tCLKF = 10 ns, VIL = 0.5V; XTAL2 disconnected; EA = PORT0 = VCC, RST = VSS. 4. Stop mode ICC is measured with all output pins disconnected; EA = PORT0 = VCC; XTAL2 not connected; RST = VSS. 5.
PAGE 19
DS5000(T) DATA SHEET REVISION SUMMARY REVISION 072095 to 072496 112299 DESCRIPTION Corrected Figure 3 to show RST active high. Added Data Sheet Revision Summary section. Converted from Interleaf to Word. Page 1: Features Added “at Room Temperature” to “Maintains All Nonvolatile Resources Up to 10 Years in the Absence of VCC” bullet. Page 2: Ordering Information Removed 8kB parts from list; added 32kB and lead-free packages.