CYAT81682-100AS77Z

Touch Screen Controllers Overview

The CYAT81682-100AS77Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx 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 for sensor signal processing. Designed for surface-mount installation, it is housed in a TQFP-100 package. The component is rated for industrial temperature ranges, functioning reliably between -40°C and +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 touchscreen controllers for industrial displays
• HMI interfaces requiring robust environmental performance
• Embedded systems utilizing PSOC-based architecture

Touch Screen Controllers Procurement Notes

Verify humidity sensitivity classification before storage and handling, as the component is moisture-sensitive. Confirm the specific suffix 'S77Z' aligns with required packaging and environmental specifications against official datasheets. Ensure compatibility with the TQFP-100 footprint during PCB layout. Cross-reference the manufacturer number CYAT81682-100AS77Z directly with Infineon documentation to avoid substitution errors.

Touch Screen Controllers Selection Notes

Select this model when an integrated processor-based touch controller is required for high-reliability applications. The choice depends on the need for simultaneous I2C and SPI connectivity and operation in temperatures up to 105°C. Verify that the 1.71 V minimum supply voltage meets system power rails. Consider the TQFP-100 package constraints for board space and thermal management requirements.

Touch Screen Controllers Part Context

This component belongs to the CYAT81682 series, which utilizes PSoC technology for TrueTouch functionality. It serves as a specialized solution for capacitive sensing, distinguishing itself from standard ASIC controllers by including a programmable CPU core. The series is designed to replace legacy touch solutions with more flexible, software-defined processing capabilities.

Touch Screen Controllers Replacement Considerations

Direct replacements must match the TQFP-100 package and electrical characteristics. Verify if alternative suffixes like CYAT81682-100AA77Z offer identical pinouts but different temperature grades or packaging options. Consult Infineon's cross-reference tools for confirmed compatible parts within the TrueTouch family.