CYAT817AZA88-42002

Touch Screen Controllers Overview

The CYAT817AZA88-42002 is an automotive-grade multitouch capacitive touchscreen controller from Infineon's PSoC™ Automotive Multitouch generation 7XL series. It features a 32-bit Arm® Cortex® CPU and supports up to 88 sense pins with ten-finger tracking. 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. Communication interfaces include I²C (up to 1 Mbps) and SPI (up to 8 Mbps). Packaged in a 128LD TQFP, it integrates noise-suppression technologies, hover sensing, and water rejection capabilities for reliable human-machine interface applications.

Touch Screen Controllers Feature Summary

• Automotive Electronics Council (AEC)-Q100 qualified
• Supports up to 88 sense pins and reports up to ten fingers
• Integrated DSP for data processing and high-frequency TX frequency hopping
• Features hover sensing, water rejection, and dual-sense wet-finger tracking

Touch Screen Controllers Applications

• Automotive infotainment systems
• Vehicle instrument clusters
• HVAC control panels

Touch Screen Controllers Procurement Notes

Verify the specific ordering suffix against the official Infineon datasheet to confirm feature sets such as CAN interface or cryptographic engine availability. Confirm package type and temperature grade requirements before procurement. Ensure compliance with moisture sensitivity levels during storage and handling.

Touch Screen Controllers Selection Notes

Select this component for applications requiring AEC-Q100 qualification and robust noise immunity in automotive environments. The 88-pin configuration suits medium-sized displays. Evaluate power consumption requirements, noting typical deep sleep power of 30 µW. Ensure host system compatibility with I²C or SPI communication protocols.

Touch Screen Controllers Part Context

This part belongs to the PSoC™ Automotive Multitouch generation 7XL family. It shares core architecture with other variants like CYAT817AZS88-5BFBA but differs in specific feature configurations such as the presence of secondary safety interfaces or haptic support. All devices in the series share base features including auto armor technology and large object rejection.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same generation require matching sense pin counts and package types. Variants with additional features like CAN or crypto engines may be compatible if those features are not utilized. Cross-generation upgrades should be evaluated based on software compatibility and resource availability.