STM32W108HB datasheet(28/179 Pages) STMICROELECTRONICS

28 / 179 page

Pinout and pin description

STM32W108CB, STM32W108HB

28/179

Doc ID 16252 Rev 2

PB6

I/O

High

current

Digital I/O

ADC1

Analog

ADC Input 1

Enable analog function with GPIO_PBCFGH[11:8]

IRQB

External interrupt source B

TIM1_CH1

Timer 1 channel 1 output

Enable timer output in TIM1_CCER

Select alternate output function with GPIO_PBCFGH[11:8]

Timer 1 channel 1 input (Cannot be remapped)

PB5

I/O

Digital I/O

ADC0

Analog

ADC Input 0

Enable analog function with GPIO_PBCFGH[7:4]

TIM2CLK

Timer 2 external clock input

TIM1MSK

Timer 2 external clock mask input

VDD_CORE

Power

1.25 V digital core supply decoupling

VDD_PRE

Power

1.8 V prescaler supply

VDD_SYNTH

Power

1.8 V synthesizer supply

OSCB

I/O

24 MHz crystal oscillator or left open when using external clock

input on OSCA

OSCA

I/O

24 MHz crystal oscillator or external clock input

GND

Ground

Ground supply pad in the bottom center of the package.

IRQC and IRQD external interrupts can be mapped to any digital I/O pin using the GPIO_IRQSEL and GPIO_IRQDSEL

registers.

Table 1.

Pin descriptions (continued)

48-Pin

Packag

e Pin

no.

40-Pin

Packag

e Pin

no.

Signal

Direction

Description

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