GuangDong LeapFive Technology Co.,Ltd., specifications Module name:LF-WM03 module Version number:LF_WM_FW_1.0.0 Days: 2020-08-20 © 2020 LeapFive Inc.
Outline The name of the module LF-WM03 characteristic Supports the 802.11 b/g/n standard, frequency range 2400M to 2483.5MHz Contains 276KB SRAM/128KB ROM/1Kb eFuse Operating voltage:DC 2.5 V to 3.6 V Wi-Fi-related features Support for IEEE 802.
Directory Outline ...................................................... 2 1.Introduction: .............................................. 4 1.1 Package size ........................................... 4 1.2 Pin definition ......................................... 5 2.Electrical parameters ...................................... 7 2.1 working conditions ..................................... 7 2.2 Hardware and software parameters ....................... 8 2.3 Power parameters ..................................
1. Introduction: The LF-WM03 module is alow-cost, high-performance WIFI module based on the LF686C(32bit RISC CPU with FPU) to create a cost-effective IoT module for customers. Figure 1 shows the hardware block diagram of the LF-WM03 module, consisting of the following three major parts: 32-bit RISC-V core CPU WiFi RF module Enrich peripherals Figure 1 LF-WM03 hardware block diagram thereinto: 1.
Table 1 Module Size Reference Table Long Wide High PAD size PIN foot spacing 24mm 16mm 3.0mm 1*1.4mm 2mm The LF-WM03 module is designed in a stamp package as shown in Figure 2 for easy commissioning, easy disassembly and a variety of options for customer design. A total of 16 pins are drawn, with a 2mm pin spacing and evenly distributed on both sides of the module. Figure 2 Stamp hole package dimensions 1.2 1.2.
Figure 3 LF-WM03 Pin Definition 1.2.2 Pin definition The LF-WM03 pin definition is shown in Table 2. Table 2 LF-WM03 Pin Definition Table Serial number 1 Pin name Description of the function RST Reset the foot 2 IO_05 SDIO, SPI, I2C, UART, PWM, GPIO 3 IO_02 SDIO, SFLASH, SPI, I2C, UART, PWM, GPIO 4 IO_11 SPI, I2C, UART, PWM, AUXADC, GPIO 5 IO_12 SPI, I2C, UART, PWM, AUXADC, GPIO 6 IO_14 SPI, I2C, UART, PWM, AUXADC, GPIO 7 IO_17 SFLASH, SPI, I2C, UART, PWM, GPIO 8 VCC 3.
Serial number Pin name Description of the function 9 GND GND 10 IO_00 SDIO, SFLASH, SPI, I2C, UART, PWM, GPIO 11 IO_08 SPI, I2C, UART, PWM, AUXADC, GPIO 12 IO_01 SDIO, SFLASH, SPI, I2C, UART, PWM, GPIO 13 IO_03 SDIO, SPI, I2C, UART, PWM, GPIO 14 IO_04 SDIO, SPI, I2C, UART, PWM, GPIO 15 IO_07 SPI, I2C, UART, PWM, AUXADC, GPIO 16 IO_16 SPI, I2C, UART, PWM, GPIO Note: IO08 port needs to be pulled up when downloading burning, not when using it. 2. Electrical parameters 2.
2.2 Hardware and software parameters Type Wireless parameters Parameter Illustrate WIFI protocol 802.11 b/g/n Frequency range 2400M ~ 2483.5MHz UART/I2C/SPI/IR remote control The data interface GPIO/PWM 2.5 V ~ 3.6 V Operating voltage Hardware parameters Operating current The average current is 80mA The current is supplied Operating temperature Package size Minimum 500mA (16.00±0.10) mm x (24.00±0.10) mm x (3.00±0.
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11b - 11Mbps @21dBm Duty 99% / 310 / 11g - 54Mbps @18dBm Duty 50% / 145 / Duty 99% / 230 / 11n - MCS7 @17dBm Duty 50% / 130 / Duty 99% / 215 / Run Freq@192MHz / 22 / StandBy Freq@<10MHz / 2 / Sleep PDS7 Fast recover / 12 / Hibernate HBN RTC or GPIO wakeup / 0.5 / Shut-down / / / 0.1 / MCU uA 3 RF parameters 3.
S11 11g - 6Mbps / 36 / 11g - 54Mbps / 22 / 11n - MCS0 / 36 / 11n - MCS7 / 19 / / / ＜-10 / 3.2 TX features Table 7 TX features Test data at 25 ℃ mod e Transfer power Minimum 11b - 1Mbps / Typical value 19.85 Maxim um 21 11b - 11Mbps / 17.00 21 11g - 6Mbps / 21.21 22 11g - 54Mbps / 20.52 22 11n - MCS0 / 21.19 22 11n - MCS7 / 21.05 22 11g - 54Mbps / -28 / 11n - MCS7 / -30 / 11b - 1Mbps / -0.95 / 11b - 11Mbps / 0.71 / 11g - 6Mbps / -0.
The configurable RAM/ROM connector for the internal storage controller and external Flash can be connected Connect the data RAM connector of the storage controller Access the AHB port of the register 4.2 storage The LF-WM03 chip has a built-in storage controller that includes ROM and SRAM. With 276KB SRAM,128KB ROM, and 1Kb eFuse. 2MB Flashis integrated inside thechip. 4.
5. Assembly information and production guidance 5.1 Assembly dimensions Figure 4 LF-WM03 Assembly Dimensions 5.2 PCB antenna clearance area When using a PCB antenna on a WIFI module, as shown in Figure 5, you need to ensure that the motherboard PCB antenna is at least as far away from other metal devices more than 16mm. © 2020 LeapFive Inc.
Figure 5 Map of the clearance area of the PCB antenna 5.3 Production precautions The LF-WM03 module must be sliced by an SMT machine and baked before the patch.
FCC Statement FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247, Integral antenna with antenna gain 1.5dBi This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
IC STATEMENT This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference.
