STM8T141 datasheet(7/50 Pages) STMICROELECTRONICS

Part #	STM8T141

Description	Single-channel capacitive sensor for touch or proximity detection with shielded sensing electrode

PDF	50 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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7 / 50 page

STM8T141

Description

Doc ID 15699 Rev 7

7/50

Description

The STM8T141 is a ProxSense™ single-channel, fully integrated, charge-transfer,

capacitive sensor that is designed to replace conventional electromechanical switches in

cost-sensitive applications.

The STM8T141 is offered in 8-pin packages and is ideally suited for 1-button applications. It

can be configured either in touch or proximity sensing mode for wake-up or backlighting on

actuation.

The extremely low current consumption makes it an ideal solution for battery-powered

applications.

The device features an internal voltage regulator to enhance detection sensitivity and

stability.

The STM8T141 touchpad can sense through almost any dielectric and can thereby contain

the electronics in a sealed environment.

The STM8T141 also incorporates the advantages of using a driven shielding capability. This

makes it possible to separate the sealed electronics from the sensing electrode. The shield

feature enables the designer to protect part of the sensing element from unwanted

environmental interference and enhances proximity detection when used with battery (DC)

applications.

Note:

ProxSense™ is a trademark of Azoteq.

STM8T141 Datasheet(PDF) 7 Page - STMicroelectronics