CYAT817AZA72-3BFBA

Touch Screen Controllers Overview

The CYAT817AZA72-3BFBA is a PSoC™ Automotive Multitouch Generation 7XL capacitive touchscreen controller designed for automotive applications. It features a 32-bit Arm® Cortex® CPU and supports up to 72 sense pins with ten-finger reporting. The device operates within an ambient temperature range of –40°C to +85°C (Automotive-A grade) and is housed in a 128-pin TQFP package. Key electrical parameters include a logic supply voltage of 1.71 V to 1.95 V, analog supply of 3.0 V to 5.5 V, and average power consumption of 30 mW.

Touch Screen Controllers Feature Summary

• Supports hover sensing up to 35 mm and force touch capabilities.
• Includes CAPSENSE™ buttons, low-power wake-up button (< 50 µA), and slider sensing.
• Features auto armor technology for electromagnetic emission and immunity improvement.
• Provides water rejection, wet-finger tracking, and support for thin gloves (≤ 1 mm).

Touch Screen Controllers Applications

• Automotive infotainment systems
• Driver and passenger display interfaces
• Smart sensing applications requiring high noise suppression

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. Ensure the selected variant matches the required temperature grade and package dimensions for the target PCB design.

Touch Screen Controllers Selection Notes

Select this model for applications requiring 72 sense pins and a 128-pin TQFP package. Confirm that the system requires Automotive-A grade temperature performance (-40°C to +85°C). Evaluate if the integrated DSP and multi-phase TX capability meet the signal-to-noise ratio requirements for the specific display stackup.

Touch Screen Controllers Part Context

This component belongs to the PSoC™ Automotive Multitouch Generation 7XL series. It is part of a family offering various pin counts and feature sets, ranging from 61 to 103 sense pins, to accommodate different screen sizes and complexity levels in automotive HMI designs.

Touch Screen Controllers Replacement Considerations

Compatible substitutes within the same generation include CYAT817AZS72-3BFBA and CYAT817AZA77-5BFBA. Verify pin compatibility and feature parity before substitution.