STM32F031C4(2015) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F031C4
(Rev.:2015)

ARM®-based 32-bit MCU with up to 32 Kbyte Flash, 9 timers, ADC and communication interfaces, 2.0 - 3.6 V

STMicroelectronics 

Functional overview

Figure 2. Clock tree

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3.7

General-purpose inputs/outputs (GPIOs)

Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as

input (with or without pull-up or pull-down) or as peripheral alternate function. Most of the

GPIO pins are shared with digital or analog alternate functions.

The I/O configuration can be locked if needed following a specific sequence in order to

avoid spurious writing to the I/Os registers.

14/106

DocID025743 Rev 4

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