CYAT81689-100AA61Z

Touch Screen Controllers Overview

The CYAT81689-100AA61Z is an automotive-grade capacitive touchscreen controller from Infineon Technologies, belonging to the PSoC™ 4 Automotive TSG6_XL family. It integrates a TrueTouch® Generation 6XL sensor interface with a 32-bit ARM Cortex-M0 CPU. The device supports up to 61 sensor pins and features display armor for noise immunity. Key electrical parameters include a supply voltage range of 1.71 V to 5.5 V and operation within an industrial temperature range of -40°C to +85°C. It utilizes I2C and SPI interfaces for communication.

Touch Screen Controllers Feature Summary

• Supports thick overlays, thick gloves, and waterproof environments
• Integrated display armor for enhanced noise immunity
• Capable of detecting up to 10 simultaneous touch points
• Low power consumption with wake-up button support

Touch Screen Controllers Applications

• Automotive human-machine interface (HMI) systems
• Smart sensing applications in vehicles
• General-purpose automotive control panels

Touch Screen Controllers Procurement Notes

Verify RoHS compliance status and lead times directly with authorized distributors or Infineon. Confirm package availability in TQFP-100 format. Check for specific ordering suffixes that may affect packaging quantity or moisture sensitivity level requirements during storage and handling.

Touch Screen Controllers Selection Notes

Select this component when high noise immunity is required due to integrated display armor. Ensure the application requires support for thick overlays or gloved operation. Verify that the 61 sensor pin count meets the design needs. Confirm compatibility with the TSG6_XL firmware ecosystem for tuning and configuration.

Touch Screen Controllers Part Context

This part is part of the CYAT8168X series, designed specifically for automotive HMI applications. It shares the TSG6_XL architecture with other variants like CYAT81688 and CYAT81682, differing primarily in sensor pin count and package options. It is distinct from non-automotive PSoC devices by its extended temperature range and automotive qualification standards.

Touch Screen Controllers Replacement Considerations

Direct substitutes within the same family include CYAT81688-100AA61Z, which offers similar functionality but may differ in sensor pin configuration. Cross-family replacements require careful evaluation of firmware compatibility and pinout differences. Always verify functional equivalence before substitution.