CYAT817AZS72-3BFBA

Touch Screen Controllers Overview

The CYAT817AZS72-3BFBA is an automotive-grade capacitive touchscreen controller from the PSoC™ Automotive Multitouch Generation 7XL family. It integrates a 32-bit Arm® Cortex® CPU and supports up to 72 sense pins with ten-finger multitouch capability. 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 (Automotive-A). Key electrical parameters include a typical deep sleep power consumption of 30 μW and an average power of 30 mW. It features I²C and SPI communication interfaces, supporting bit rates up to 1 Mbps and 8 Mbps respectively.

Touch Screen Controllers Feature Summary

• Supports hover sensing up to 35 mm and force touch capabilities with a typical range of 0.5 N to 10 N.
• Includes integrated DSP for data processing, noise suppression technologies, and auto armor for electromagnetic immunity.
• Features low-power wake-up button sensing consuming less than 50 µA and wake-on-touch screen functionality.
• Provides secondary safety communication interface options including CAN and configurable I²C/SPI master/slave.

Touch Screen Controllers Applications

• Automotive infotainment systems requiring high reliability and noise immunity.
• Vehicle instrument clusters and dashboard displays.
• Center console control panels with slider or button sensing needs.

Touch Screen Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm feature sets such as CAN interface support and package type. Ensure that the selected variant meets the required ambient temperature range for the intended application environment. Cross-reference the datasheet revision history for any updates to pinout or electrical characteristics before finalizing procurement specifications.

Touch Screen Controllers Selection Notes

Select this component based on the requirement for 72 sense pins and ten-finger multitouch support. Confirm compatibility with the target display size and electrode pitch, noting support for screen sizes up to 15 inches. Evaluate the need for specific features like force touch or hover sensing, which are included in this part number but may vary across the series.

Touch Screen Controllers Part Context

This component belongs to the Infineon PSoC™ Automotive Multitouch Generation 7XL series, designed specifically for automotive human-machine interfaces. It is AEC-Q100 qualified and utilizes ARM Cortex CPU architecture. The 'S' in the model indicates an Automotive-S temperature grade option in the broader family, though this specific part is designated for the -40°C to 85°C range.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same generation include CYAT817AZS72-3B202 and CYAT817AZS72-3B002, which share the 72-pin configuration and package. Variants with different feature sets, such as those lacking CAN or force touch, should be evaluated for functional equivalence in the specific system design.