CYAT81685-100AS71Z

Touch Screen Controllers Overview

The CYAT81685-100AS71Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex CPU for advanced signal processing and gesture recognition. The device supports I2C and SPI interfaces with a 32-bit resolution. Operating voltage ranges from 1.71 V to 5.5 V, with a typical operating current of 20 mA. It functions within a temperature range of -40°C to +85°C and is housed in a TQFP-100 package suitable for surface mount installation.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex CPU for complex touch algorithms
• Supports I2C and SPI communication interfaces
• Capacitive sensing with 4 ADC inputs
• Wide supply voltage range (1.71 V to 5.5 V)

Touch Screen Controllers Applications

• Smartphones and mobile devices
• Tablets and portable media players
• Industrial control panels

Touch Screen Controllers Procurement Notes

Verify the suffix 'S71Z' against official Infineon documentation to confirm specific packaging or environmental compliance details. Confirm moisture sensitivity level requirements during storage and handling. Ensure the TQFP-100 footprint matches the target PCB design. Check for RoHS compliance status in the latest datasheet before integration.

Touch Screen Controllers Selection Notes

Select this component when high-performance multi-touch gestures are required alongside standard touch detection. The integrated CPU allows for custom algorithm implementation without external processors. Ensure the application environment stays within the specified -40°C to +85°C operating range. Verify that the system power supply can maintain stability between 1.71 V and 5.5 V.

Touch Screen Controllers Part Context

This part belongs to the CYAT81685 series, designed for high-end touch applications. It differs from lower-tier controllers by including an onboard processor for enhanced user experience features like swipe and pinch gestures. The TrueTouch branding indicates compatibility with Infineon's established touch software ecosystem.