STMPE1208S
STMPE1208S is Xpander Logic manufactured by STMicroelectronics.
Xpander Logic™ with 12-channel touchkey
Features
- 12 touchkey capacitive sensor inputs ..
- 12-bit general purpose input/output (GPIO)
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Operating voltage 2.5
- 5.5 V 98 μA in active mode, 60 μA in idle mode Dual interrupt output pin I2C interface (up to 400 k Hz) 7 k V HBM ESD protection Idle and sleep mode for low power operation Advanced data filtering (AFS) Environment tracking calibration (ETC) Individually adjustable touch variance (TVR) setting for all channels Adjustable environmental variance (EVR) for optimal calibration
QFN40
Description
The STMPE1208S is a 12-channel GPIO capacitive touchkey 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 touchkeys.
Applications
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Notebook puters Monitors Set-top boxes Televisions Portable media players and game consoles Mobile and smart phones Home entertainment systems Domestic appliances
Table 1.
Device summary
Order code STMPE1208SQTR Package QFN40 Packing Tape and reel
July 2008
Rev 3
1/51
.st. 51
Contents
Contents
1 Pin configuration and...
