CYAT817AZA77-5BFBA

Touch Screen Controllers Overview

The CYAT817AZA77-5BFBA is an automotive-grade capacitive touchscreen controller from the PSoC™ Automotive Multitouch Generation 7XL series. It features a 32-bit Arm® Cortex® CPU and supports up to 77 sense pins with ten-finger multitouch reporting. The device operates within a supply voltage range of 1.71 V to 5.5 V and functions in ambient temperatures from -40°C to +85°C. Key capabilities include hover sensing, force touch, water rejection, and wet-finger tracking. It utilizes I²C and SPI interfaces for host communication.

Touch Screen Controllers Feature Summary

• Automotive Electronics Council (AEC)-Q100 qualified
• Supports hover sensing up to 35 mm and force touch
• Integrated 32-bit Arm® Cortex® CPU with register configuration
• Water rejection and wet-finger tracking via dual sense capability

Touch Screen Controllers Applications

• Automotive infotainment systems
• Vehicle instrument clusters
• Rear-seat entertainment displays

Touch Screen Controllers Procurement Notes

Verify that the specific ordering suffix matches the required feature set, including the presence of haptic support and cryptographic engine options. Confirm the package type is 128LD TQFP and ensure the temperature grade corresponds to the application environment. Cross-reference the datasheet revision history for any updates to pinout or electrical characteristics before finalizing procurement.

Touch Screen Controllers Selection Notes

Select this component for applications requiring high noise immunity and advanced gesture recognition in automotive environments. Ensure the design accommodates the 128-pin TQFP package dimensions. Verify that the host system supports the required I²C or SPI bit rates for data transfer. Consider the power consumption specifications if battery-operated subsystems are involved.

Touch Screen Controllers Part Context

This part belongs to the Infineon PSoC™ Automotive Multitouch Generation 7XL family. It is designed to meet strict automotive quality standards while supporting innovative driver and passenger interaction modes. The series includes variants with different numbers of sense pins and feature sets to accommodate various display sizes and sensor configurations.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same generation require matching sense pin counts and feature sets. Variants such as CYAT817AZS77-5BFBA offer similar functionality but may differ in specific interface configurations or additional safety features. Always verify compatibility with existing firmware and hardware layouts when substituting.