CYAT81682-100AS71

Touch Screen Controllers Overview

The Infineon Technologies CYAT81682-100AS71 is a capacitive touchscreen controller within the TrueTouch Standard Classics family. It integrates an Arm Cortex CPU and supports I2C and SPI interfaces for system communication. The device operates on a supply voltage range of 1.71 V to 5.5 V with a typical operating current of 20 mA. It features a 32-bit resolution architecture and includes four ADC inputs for sensor signal processing. Designed for surface-mount installation, it is housed in a TQFP-100 package and functions reliably across an industrial temperature range from -40°C to +105°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex CPU for advanced touch processing
• Dual interface support via I2C and SPI protocols
• Wide operating voltage range from 1.71 V to 5.5 V
• Industrial temperature rating up to +105°C

Touch Screen Controllers Applications

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

Touch Screen Controllers Procurement Notes

Verify the specific suffix AS71 against official datasheets to confirm the extended temperature grade (+105°C) and packaging configuration. Ensure compatibility with the host system's voltage levels and interface requirements before integration. Confirm moisture sensitivity handling procedures are followed during assembly.

Touch Screen Controllers Selection Notes

Select this model when an integrated processor-based touch controller is required for high-performance applications. The AS71 suffix indicates the industrial temperature range variant suitable for harsh environments. Compare against other suffixes like AA71 if commercial temperature grades (-40°C to +85°C) suffice for the target application.

Touch Screen Controllers Part Context

This component belongs to the Infineon TrueTouch Standard Classics series, designed for capacitive sensing applications. It replaces older discrete touch controller solutions by integrating processing capabilities directly onto the chip, reducing board space and design complexity for modern display interfaces.