CYAT81659-100AS48

Overview

The CYAT81659-100AS48 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex-M CPU for advanced gesture processing and sensor management. The device supports I2C and SPI interfaces for system communication. It operates within a supply voltage range of 1.71 V to 5.5 V and functions reliably across an industrial temperature range of -40°C to +85°C. Housed in a TQFP-64 package, it is designed for high-performance touch applications requiring robust signal integrity and low power consumption.

Feature Summary

• Integrated Arm Cortex-M CPU for complex gesture recognition and sensor fusion
• Supports both I2C and SPI communication interfaces
• Wide operating voltage range from 1.71 V to 5.5 V
• Industrial temperature rating from -40°C to +85°C

Applications

• Automotive infotainment systems
• Industrial control panels
• Consumer electronics with multi-touch displays

Procurement Notes

Verify the specific suffix AS48 against official Infineon documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing firmware libraries for the TrueTouch Standard TS3xxx family before integration. Check for moisture sensitivity levels and recommended reflow profiles during assembly planning.

Selection Notes

Select this model when a balance of processing power and interface flexibility is required. The TQFP-64 package suits designs with moderate pin counts. Compare against the CYAT81659-64AA48 if a smaller footprint is acceptable, or consider higher-pin variants like the CYAT81682 series for larger display matrices requiring more electrodes.

Part Context

This component belongs to the CYAT8165x series of TrueTouch controllers. These devices are engineered to replace legacy resistive touch solutions with capacitive technology while maintaining software compatibility. The series emphasizes ease of integration into automotive and industrial environments through standardized interfaces and robust noise immunity features.

Replacement Considerations

Direct replacements within the same family include other CYAT8165x variants with different suffixes indicating package or reel options. Verify that any substitute part maintains the same pinout and electrical characteristics to ensure board-level compatibility without redesign.