CYAT81688-100AA61ZT

Touch Screen Controllers Overview

The CYAT81688-100AA61ZT is a 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 CMOS input type, with a maximum operating current of 20 mA. Designed for industrial applications, it functions between -40°C and +85°C. The component is housed in a TQFP-100 package and utilizes an Arm Cortex CPU architecture.

Touch Screen Controllers Feature Summary

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

Touch Screen Controllers Applications

• Automotive human-machine interfaces
• Industrial control panels
• Smart sensing applications

Touch Screen Controllers Procurement Notes

Verify the specific suffix 'ZT' against official Infineon documentation to confirm tape-and-reel packaging details. Ensure compatibility with the required interface protocols (I2C/SPI) and voltage levels before integration. Confirm that the TQFP-100 package dimensions match the target PCB footprint design constraints.

Touch Screen Controllers Selection Notes

Select this model when a robust capacitive touch solution with flexible communication options is required. The wide voltage tolerance allows integration into systems with varying power rails. Verify that the 20 mA current consumption aligns with the system's power budget and thermal management capabilities for the intended operating environment.

Touch Screen Controllers Part Context

This component belongs to the Infineon TrueTouch series, designed for high-performance touch sensing. It integrates an Arm Cortex CPU for advanced processing capabilities. The part is distinct from other variants in the CYAT8168x family by its specific pin count and package configuration, tailored for complex display armor and thick overlay applications.

Touch Screen Controllers Replacement Considerations

Direct substitutes include other members of the CYAT8168x family, such as CYAT81689 or CYAT81685, provided they meet the pinout and performance requirements. Cross-reference datasheets to ensure interface and voltage specifications are compatible.