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CYTMA445A: TrueTouch® Multi-Touch All-Points Touchscreen Controller | Cypress Semiconductor

CYTMA445A: TrueTouch® Multi-Touch All-Points Touchscreen Controller

Last Updated: 
Jul 18, 2016
Version: 
*D

TrueTouch® Multi-Touch All-Points Touchscreen Controller

Features

  • Multi-touch capacitive touchscreen controller
    • 32-bit ARM Cortex™ CPU
    • Register configurable
    • Noise suppression technologies for battery charger and display
    • Water rejection and wet-finger tracking using DualSense™
    • Grip suppression
  • System performance (configuration dependent)
    • Screen sizes up to 5.0-inch diagonal • 4.8-mm sensor pitch; 16:9 aspect ratio
    • Up to 36 sense pins • 308 intersections (22 × 14)
    • Reports up to ten fingers
    • Small finger support down to 4 mm
    • Large finger support up to 30 mm
    • Refresh rate up to 300 Hz; other rates configurable
    • TX frequency up to 500 kHz
    • Best-in-class charger noise immunity
    • Immunity up to 35-V peak-to-peak (VPP)
    • Immunity to AT&T® Zero charger noise
  • Power (configuration dependent)
    • 1.71- to 1.95-V or 2.0- to 5.5-V digital and I/O supply
    • 2.65- to 4.7-V analog supply
    • 5.7-μW typical deep-sleep power
  • Sensor and system design (configuration dependent)
    • Supports a variety of touchscreen sensors and stack-ups
  • Communication Interface
    • I2C slave at 100 and 400 kbps
    • SPI slave bit rate up to 8 Mbps
  • Package options
    • 44-pin 5 × 5 × 0.6-mm QFN (0.35-mm lead pitch)
    • 48-pin 6 × 6 × 0.6-mm QFN (0.4-mm lead pitch)
  • For more, see pdf