Description:

The STMPE1208S is a GPIO 12 channelcapacitive touch key sensor able to interface aMain Digital ASIC via the two-line bidirectionalbus (I2C). It senses changes in capacitance usinga fully digital architecture, giving fast and accurateresults at very low power consumption. AutomaticImpedance Calibration ensures that changes inenvironment will never affect the correct operationof the capacitive touch keys. 

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) foroptimal calibration

Applications:

■ Notebook Computer, Monitor

■ Set Top Box, Television

■ Portable media player, Game console

■ Mobile phone, Smart phone

■ Home Entertainment Systems

■ Domestic Appliances