CYAT81682-128AS88

Touch Screen Controllers Overview

The CYAT81682-128AS88 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch family. It integrates an ARM Cortex CPU and supports I2C and SPI interfaces. 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 features a 32-bit resolution and includes four ADC inputs. Designed for surface-mount installation, it is housed in a TQFP-128 package and functions reliably across a temperature range of -40°C to +105°C.

Touch Screen Controllers Feature Summary

• Integrated ARM Cortex CPU architecture
• Supports I2C and SPI communication protocols
• Includes four dedicated ADC inputs
• Automotive-grade temperature range (-40°C to +105°C)

Touch Screen Controllers Applications

• Capacitive touchscreen interface systems
• Human-machine interface (HMI) controllers

Touch Screen Controllers Procurement Notes

Verify component authenticity through authorized Infineon channels or certified distributors. Confirm RoHS compliance status via official documentation. Check moisture sensitivity levels prior to soldering. Ensure storage conditions meet specified humidity requirements to prevent damage before use.

Touch Screen Controllers Selection Notes

Select this model when a dedicated touch controller with integrated processing capability is required. The TQFP-128 package suits designs needing multiple touch electrodes. Verify that the host system supports the necessary I2C or SPI interface speeds. Ensure power supply rails align with the 1.71 V to 5.5 V operating range.

Touch Screen Controllers Part Context

This component belongs to the CYAT81682 series of TrueTouch capacitive touch controllers. These devices are designed for high-performance touch sensing applications requiring robust signal processing and low power consumption within automotive and industrial environments.

Touch Screen Controllers Replacement Considerations

Consult Infineon's official cross-reference tools for verified substitutes. Ensure any replacement maintains compatible pinout, interface protocols, and thermal specifications.