CYAT81685-100AA61Z

Touch Screen Controllers Overview

The CYAT81685-100AA61Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex-M 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 features four ADC inputs and functions within a temperature range of -40°C to +85°C. The component is housed in a TQFP-100 package suitable for surface mount installation.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex-M CPU for efficient touch processing
• Dual interface support via I2C and SPI protocols
• Four dedicated ADC inputs for sensor connectivity
• Wide supply voltage range from 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Smartphones and mobile communication devices
• Tablets and portable computing platforms
• Industrial control panels requiring capacitive input

Touch Screen Controllers Procurement Notes

Verify the suffix 'Z' indicates RoHS compliance status through official Infineon documentation or certified distributor declarations. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure ordering quantities align with standard factory packaging multiples of 900 units per tray.

Touch Screen Controllers Selection Notes

Select this model when high-resolution touch detection and integrated processing capabilities are required. The TQFP-100 package offers ample pin count for complex electrode configurations. Verify that the system power supply remains stable between 1.71 V and 5.5 V to ensure correct operation across the specified industrial temperature range.

Touch Screen Controllers Part Context

This component belongs to the CYAT81685 series, designed as a direct replacement for previous generation TrueTouch controllers. It provides enhanced performance through embedded firmware execution on the Cortex-M core. The series maintains compatibility with standard capacitive touch sensor layouts while offering improved noise immunity.

Touch Screen Controllers Replacement Considerations

Direct substitutes include CYAT81685-100AA61 and CYAT81685-100AA71. These variants share identical electrical specifications and pinouts. Differences typically reside in environmental certifications or specific manufacturing lot attributes rather than functional changes.