STMicroelectronics AN3404 STM8TL53xx Low Power Application Note

This document provides an overview of low power modes in the STM8TL53xx devices and explains how to reduce power consumption when using the ProxSense peripheral.

Brand: STMicroelectronics
Category: microcontrollers
Document type: Application Note
Language: English
Pages: 30
File format: PDF
File size: 338 KB
Published: 07 August, 2012
Updated: 29 September, 2023
Model: STM8TL53xx
MD5 checksum: 8249F73B8165940100C0000BA8CC32E2
PDF: STMicroelectronics AN3404 STM8TL53xx Low Power Application Note PDF

About this manual

This document provides an overview of low power modes for STM8TL53xx devices, focusing on reducing consumption when using the ProxSense peripheral. It details the differences between various modes and explains how the STM8TL5x Touch Sensing Library manages these features.

What's inside

Power consumption factors
Power supply
Internal supply structure
Clock management
Low power Modes
ProxSense and low power Modes
Low power mode management by the STM8TL5x Touch Sensing Firmware Library

Specifications

Operating voltage range	1.65 V up to 3.6 V
Main voltage regulator current capability	up to 25 mA
Low power voltage regulator current capability	up to 200 uA

Frequently asked questions

What is the default clock source after reset?

The default clock source after reset is HSI/8.

Which oscillator supplies the auto-wakeup unit and watchdog?

The 38 kHz low-speed internal RC oscillator (LSI) is used to supply the auto-wakeup unit and watchdog.

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