Cypress designed the new TrueTouch CYAT817 touchscreen controller family specifically to meet rigorous automotive quality standards, while enabling innovative driver and passenger usage models. The family offers class-leading Hover and Force Touch features while meeting stringent automotive electromagnetic interference (EMI) and electromagnetic compatibility (EMC) requirements. For infotainment systems, the CTAT817X can replace mechanical on/off buttons with a capacitive touchscreen, enabling sleek, modern interior designs. The controllers perform acoustic and haptic feedback processing on-chip for faster response times compared to distributed implementations where the chip is connected to a head-unit via a Controller Area Network (CAN) or Low-Voltage Differential Signaling (LVDS) backchannel.
Automotive Electronics Council (AEC) Q100 qualified
Multi-touch capacitive touchscreen controller - 32-bit ARM® Cortex® CPU- Register configurable - Noise-suppression technologies for display and EMI
System performance (configuration dependent) - Screen sizes up to 17-inch diagonal - Up to 98 sense pins, 2176 intersections; 16:10 aspect ratio (34 TX × 64 RX) - Reports up to ten fingers
Power (configuration-dependent) - 1.71- to 1.95-V and 3.0- to 5.5-V logic and digital I/Os supply - 3.0- to 5.5-V analog supply - 30-mW average power - 30-μW typical deep-sleep power
Communication interface - I2C slave at 100 and 400 kbps - SPI slave bit rates up to 8 Mbps
Package - 100-pin TQFP 14 × 14 × 1.4 mm (0.5-mm pitch), 128-pin TQFP 14 x 20 x 1.4 mm (0.5-mm pitch)
Ambient temperature range - Automotive-A: -40 °C to 85 °C - Automotive-S: -40 °C to 105 °C