CYAT81682-100AA71

Touch Screen Controllers Overview

The Infineon Technologies CYAT81682-100AA71 is a capacitive touchscreen controller belonging to the TrueTouch Standard family. It integrates an ARM Cortex CPU for advanced signal processing and gesture recognition. The device operates within a supply voltage range of 1.71 V to 5.5 V, with a typical operating current of 20 mA. It supports I2C and SPI interfaces for system communication. The component is housed in a TQFP-100 package and is rated for industrial temperatures from -40°C to +105°C.

Touch Screen Controllers Feature Summary

• Integrated ARM Cortex CPU for programmable touch processing
• Supports I2C and SPI communication interfaces
• Operates on supply voltages between 1.71 V and 5.5 V
• Industrial temperature rating from -40°C to +105°C

Touch Screen Controllers Applications

• Capacitive multi-touch display systems
• Industrial control panels requiring wide temperature operation
• Consumer electronics with integrated touch functionality

Touch Screen Controllers Procurement Notes

Verify the specific suffix (e.g., AA71) against official datasheets to confirm temperature grade and packaging details. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure compatibility with existing firmware libraries provided by Infineon for the TrueTouch Standard architecture.

Touch Screen Controllers Selection Notes

Select this model when an industrial temperature range (-40°C to +105°C) is required alongside programmable touch capabilities. Compare against variants like the 100AS71 or 100AA77 if different commercial temperature ranges or specific ordering suffixes are needed. Verify that the TQFP-100 footprint matches the PCB design constraints.

Touch Screen Controllers Part Context

This part is a member of the Infineon CYAT81682 series, which utilizes the TrueTouch Standard technology. The series provides scalable solutions for capacitive sensing applications. The specific suffix indicates the package type, temperature range, and trailing zeros for tape-and-reel or tray configurations as defined by Infineon's naming convention.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same family include CYAT81682-100AS71 and CYAT81682-100AA77. Verify that the alternative variant meets the specific thermal requirements and interface configuration needs of the target application before substitution.