STM32L412C8 datasheet(42/192 Pages) STMICROELECTRONICS

номер детали	STM32L412C8

подробное описание детали	Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS

PDF	192 Pages

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производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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42 / 192 page

Functional overview

STM32L412xx

42/192

DS12469 Rev 4

3.20.5

Infrared interface (IRTIM)

The STM32L412xx includes one infrared interface (IRTIM). It can be used with an infrared

LED to perform remote control functions. It uses TIM15 and TIM16 output channels to

generate output signal waveforms on IR_OUT pin.

3.20.6

Independent watchdog (IWDG)

The independent watchdog is based on a 12-bit downcounter and 8-bit prescaler. It is

clocked from an independent 32 kHz internal RC (LSI) and as it operates independently

from the main clock, it can operate in Stop and Standby modes. It can be used either as a

watchdog to reset the device when a problem occurs, or as a free running timer for

application timeout management. It is hardware or software configurable through the option

bytes. The counter can be frozen in debug mode.

3.20.7

System window watchdog (WWDG)

The window watchdog is based on a 7-bit downcounter that can be set as free running. It

can be used as a watchdog to reset the device when a problem occurs. It is clocked from

the main clock. It has an early warning interrupt capability and the counter can be frozen in

debug mode.

3.20.8

SysTick timer

This timer is dedicated to real-time operating systems, but could also be used as a standard

down counter. It features:

•

A 24-bit down counter

•

Autoreload capability

•

Maskable system interrupt generation when the counter reaches 0.

•

Programmable clock source

STM32L412C8 датащи(PDF) 42 Page - STMicroelectronics