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STMPE16M31 & STMPE24M31 Touch Key Controllers


STMicroelectronics' 16/24-channel touch key controller with PWM and ratiometric engines


STMicroelectronics' STMPE16M31 and STMPE24M31 touch key controllers expand the existing portfolio of S-Touch™ products. In addition to 16 or 24 capacitive sensing channels, the controllers offer two built-in ratiometric engines for sliders and wheels. Eight independent PWM controllers allow for control of up to 16 LEDs. The I²C interface supports up to 400kHz communication with the system host, and a very wide dynamic range allows most applications to work without hardware tuning. Datasheet STMPE16M31 & STMPE24M31 Touch Key Controller

Features Applications
  • STMPE16M31QTR – 16-channel capacitive touch key controller with PWM and ratiometric engine operates from 2.7-5.5 V and is supplied in a QFN32 package.
  • STMPE24M31QTR – 24-channel capacitive touch key controller with PWM and ratiometric engine operates from 2.7-5.5 V and is supplied in a QFN40 package.
  • Notebook PC control bars
  • Printer control panels
  • Remote controls for audio/video products
  • Front panel controls on appliances
  • Industrial control panels in harsh environments
  • Domestic control panels and LED indicator controllers
  • Medical equipment, including portable devices

STMicroelectronics P/N Digi-Key P/N Packaging Description
STMPE16M31QTR 497-10381-1-ND Cut Tape IC SENSOR S-TOUCH 16CH 32QFN
497-10381-2-ND Tape & Reel
497-10381-6-ND Digi-Reel®
STMPE24M31QTR 497-10380-1-ND Cut Tape IC SENSOR S-TOUCH 24CH 40QFN
497-10380-2-ND Tape & Reel
497-10380-6-ND Digi-Reel®