CYAT81688-100AA61Z

Touch Screen Controllers Overview

The CYAT81688-100AA61Z is an automotive-grade capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch family. It operates within a supply voltage range of 1.71 V to 5.5 V and supports I2C and SPI interfaces. The device features a 32-bit resolution and utilizes CMOS technology. Designed for industrial applications, it functions reliably between -40°C and +85°C. Packaged in a 100-pin TQFP format, this component serves as a dedicated touch screen controller for human-machine interface systems requiring robust signal processing.

Touch Screen Controllers Feature Summary

• Capacitive Touchscreen Controller with 32-bit resolution
• Dual interface support: I2C and SPI
• Operating temperature range: -40°C to +85°C
• Supply voltage range: 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Automotive infotainment systems
• Industrial HMI panels
• Smart sensing applications

Touch Screen Controllers Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance status according to official Infineon documentation. Confirm package type is TQFP-100 and check for moisture sensitivity labeling. Ensure compatibility with required operating voltage levels before integration into the design.

Touch Screen Controllers Selection Notes

Select this model when a dedicated capacitive touch controller with I2C/SPI connectivity is required. Verify that the 100-pin TQFP footprint fits the PCB layout constraints. Ensure the application environment stays within the specified -40°C to +85°C temperature range for optimal performance.

Touch Screen Controllers Part Context

This component belongs to the Infineon TrueTouch series, designed for high-performance touch sensing. It integrates directly with microcontrollers via standard serial interfaces. The part is distinct from resistive controllers and offers multi-touch capabilities suitable for modern display interfaces.

Touch Screen Controllers Replacement Considerations

The CYAT81688-100AA61Z is functionally equivalent to the CYAT81688-100AA61. Both share identical electrical specifications and pinouts. Verify package markings and RoHS status differences if substituting between these two variants.