Specifications

Beijing Winner Microelectronics Co., Ltd.
4
The pin description is shown in Table 5-1:
Table 5-1 Pin Description
Pin No.
Pin Name
Type
Default function
description
Multi-Function
1
GND
P
GND
2
VDD
P
3.3V Power
3
PA_1
I/O
Reserved
SIM_DATA、PWM_2、SPI(M/S)_CK、GPIOPA_1
4
PA_4
I/O
UART0_TX
PWM_5、SPI(M/S)_DO、I²S_M_SCL、GPIOPA_4
5
PA_5
I/O
UART0_RX
PWM_1、SPI(M/S)_DI、I²S_M_EXTCLK、GPIOPA_5
6
PB_13
I/O
PWM_2
I²C_SCL、SDIO_CMD、GPIOPB_13
7
PB_14
I/O
H_SPI_INT
PWM_5、I²C_DAT、I²S_S_SDA、GPIOPB_14
8
GND
P
GND
9
PB_15
I/O
H_SPI_CS
PWM_4、SPI(M/S)_CS、I²S_S_SCL、GPIOPB_15
10
PB_16
I/O
H_SPI_CK
PWM_3、SPI(M/S)_CK、I²S_S_RL、GPIOPB_16
11
PB_17
I/O
H_SPI_DI
PWM_2、SPI(M/S)_DI、UART1_RX、GPIOPB_17
12
PB_18
I/O
H_SPI_DO
PWM_1、SPI(M/S)_DO、UART1_TX、GPIOPB_18
13
GND
P
GND
14
PB_6
I/O
Reserved
SWDAT、UART0_RX、PWM_4、SIM_CLK、GPIOPB_6
15
PB_7
I/O
Reserved
SWCK、UART0_TX、SDIO_CMD、SPI(M/S)_CS、GPIOPB_7
16
PB_8
I/O
PWM_5
H_SPI_CK、SDIO_CK、I²S_M_SCL、GPIOPB_8
17
PB_9
I/O
UART1_CTS
H_SPI_INT、SDIO_DAT0、I²S_M_SDA、GPIOPB_9
18
PB_10
I/O
UART1_RTS
H_SPI_CS、SDIO_DAT1、I²S_M_RL、GPIOPB_10
19
PB_11
I/O
UART1_RX
H_SPI_DI、SDIO_DAT2、I²C_SCL、GPIOPB_11
20
PB_12
I/O
UART1_TX
H_SPI_DO、SDIO_DAT3、I²C_DAT、GPIOPB_12
21
GND
P
GND
22
WAKEUP
I
WAKEUP
High Level Wake up
23
/RESET
I
RESET
Low Level Reset
5 Environmental adaptability
5.1 Low temperature working test
➢ Reference standard: GB/T 2423.1-2001;
➢ Under the ambient temperature is -40±1℃, the sample of the module can continuously work for 72 hours,
and all the functions and functions are well maintained after the test.