Specifications

STM32W108CB Port Pin mappings
Chip
Pin
ProcessorPortPin SNAPpyIO

Chip
Pin
ProcessorPortPin SNAPpyIO
1 VDD_24MHZ 25 PA3,SC2nSSEL,
TRACECLK,TIM2_CH2
3
2 VDD_VCO26 PA4,ADC4,PTI_EN,
TRACEDATA2
4
3 RF_P27 PA5,ADC5,PTI_DATA,
nBOOTMODE,
TRACEDATA3
5
4 RF_N28 VDD_PADS
5 VDD_RF29 PA6,TIM1_CH3 6
6 RF_TX_ALT_P30 PB1,SC1MISO,
SC1MOSI,SC1SDA,
SC1TXD,TIM2_CH1
9
7 RF_TX_ALT_N31 PB2,SC1MISO,
SC1MOSI,SC1SCL,
SC1RXD,TIM2_CH2
10
8 VDD_IF32 SWCLK,JTCK
9 BIAS_R33 PC2,JTDO,SWO 18
10 VDD_PADSA34 PC3,JTDI 19
11 PC5,TXACTIVE 2135 PC4,JTMS,SWDIO 20
12 nRESET36 PB0,VREF,IRQA,
TRACECLK,TIM1CLK,
TIM2MSK
8
13 PC6,OSC32B,
nTXACTIVE
2237 VDD_PADS
14 PC7,OSC32A,
OSC32_EXT
2338 PC1,ADC3,SWO,
TRACEDATA0
17
15 VREG_OUT39 VDD_MEM
16 VDD_PADS40 PC0,JRST,IRQD,
TRACEDATA1
16
17 VDD_CORE41 PB7,ADC2,IRQC,
TIM1_CH2
15
18 PA7,TIM1_CH4,
REG_EN
742 PB6,ADC1,IRQB,
TIM1_CH1
14
19 PB3,TIM2_CH3,
UART_CTS,SC1SCLK
1143 PB5,ADC0,TIM2CLK,
TIM1MSK
13
20 PB4,TIM2_CH4,
UART_RTS,SC1nSSEL
1244 VDD_CORE
21 PA0,TIM2_CH1,
SC2MOSI
045 VDD_PRE
22 PA1,TIM2_CH3,
SC2SDA,SC2MISO
146 VDD_SYNTH
23 VDD_PADS47 OSCB
24 PA2,TIM2_CH4,
SC2SCL,SC2SCLK
248 OSCA
Page 198 of 202 SNAP Reference Manual Document Number 600-0007K