STMPE1208S Datasheet, PDF (1/12 Pages) STMicroelectronics – 12 channel touch key controller

STMPE1208S
Features
■ 12 touch key capacitive sensor inputs
■ 12-bit general purpose Input/Output
■ Operating voltage 2.5-5.5V
■ 98µA in active mode, 60µA in idle mode
■ Dual interrupt output pin
■ I2C interface (Up to 400KHz)
■ 8kV HBM ESD protection
■ Idle and sleep mode for low power operation
■ Advanced Filtering System (AFS)
■ Environment tracking calibration (ETC)
■ Individually adjustable TouchVariance (TVR)
setting for all channels
■ Adjustable EnvironmentalVariance (EVR) for
optimal calibration
Description
The STMPE1208S is a GPIO 12 channel
capacitive touch key sensor able to interface a
Main Digital ASIC via the two-line bidirectional
bus (I2C). It senses changes in capacitance using
a fully digital architecture, giving fast and accurate
results at very low power consumption. Automatic
Impedance Calibration ensures that changes in
environment will never affect the correct operation
of the capacitive touch keys.
12 channel touch key controller
Data Brief
QFN40 5mm x 5mm
Applications
■ Notebook Computer, Monitor
■ Set Top Box, Television
■ Portable media player, Game console
■ Mobile phone, Smart phone
■ Home Entertainment Systems
■ Domestic Appliances
Table 1. Device summary
Part Number
STMPE1208SQTR
Package
QFN40 5mm x 5mm
June 2007
Rev 1
For further information contact your local STMicroelectronics sales office.
Packaging
Tape and reel
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