STM8T141 datasheet(1/50 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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1 / 50 page

June 2011

Doc ID 15699 Rev 7

1/50

1

STM8T141

Single-channel capacitive sensor for touch

or proximity detection with shielded sensing electrode

Features

■ Touch or proximity detection (a few

centimeters)

■ Built-in driven shield function:

– Enhance proximity detection

– Protect sensing electrode from noise

interference

■ Ultra-low power modes suitable for battery

applications (11 µA in extreme low power

mode)

■ On-chip integrated voltage regulator

■ Environment compensation filter

■ User programmable options include:

– Four detection thresholds

– Four output modes

– Four low power modes

– Reference freeze timeout

■ Minimal external components

Applications

■ Consumer electronics

■ Power-critical and battery applications

– Wake-up on proximity

■ Home and office appliances

– Find-in-the-dark (FITD) applications using

proximity detection

– Sanitary ware and white goods

■ Flameproof human interface devices for use in

hazardous environments

Table 1.

Device summary

Feature

STM8T141

Operating supply voltage

2.0 V to 5.5 V

Supported interface

Single key state output

Operating temperature

–40° to +85 °C

Packages

8-pin SO

8-pin UFDFPN

SO8

UFDFPN8

(2 x 3 mm)

(narrow)

www.st.com

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