User's Manual
Table Of Contents
1 GND Ground pin
2 SWCLK Program download port
5 SWDIO Program download port
9 VCC Power supply pin (DC_3.3V)
17 GND Ground pin
20 GPIO3/USART_CK/TIM1_CH1
Multiplex pin:
IO port/USART / Timer
25 WKUP Module wake up
27 GPIO1/USART_CTS/TIM1_CH4/SPI4_MISO
Multiplexed pin：
IO port/USART /timer/SPI port
28 GPIO9/SPI4_SCK/TIM1_CH1N
Multiplex pin：
IO port/SPI port/timer
29 GPIO8/SPI4_NSS/TIM1_BKIN
Multiplex pin：
IO port/SPI port/timer
30 GPI07/ADC1_1/TIM2_CH2&TIME5_CH5/SPI4_MOSI
Multiplex pin：
IO port/ADC/timer/SPI port
31 VCC Power supply pin (DC_3.3V)
32 GND Ground pin
34 VCC
Power supply pin（DC_3.3V）
39 USART_TX USARTport Data sendng port
40 GPIO2/USART_RTS/TIM1_ETR
Multiplex pin：
IOport/USARTport/timer
41 USART_RX USARTportdata receiver
42 GPIO1/USART_CTS/TIM1_CH4/SPI4_MISO
Multiplex pin：
IOport/USARTport/timer/SPIport
43 GPI04/ADC1_9/TIM3_CH4/nLink Multiplex pin：IOport/ADC/timer
44 GPI05/ADC1_8/TIM3_CH3/nReady
Multiplex pin：IOport/ADC/timer
45 GPI06/ADC1_4/nReload Multiplex pin:IOport/ADC
47 RST/nReset Reset pin
48 GND Ground pin
Table 1-1 LSD4WF-2MD05101 Module pin definition
5. Behavior of electricity
Parameters Minimum Typical value Maximum Unit
Working voltage 3.0 3.3 3.6 V
Standby current 5 mA
Static current 20 mA
TX current 200 mA