CYAT81650-64AA48

Overview

The CYAT81650-64AA48 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch family. It integrates an Arm Cortex CPU for advanced signal processing. The device supports I2C and SPI interfaces and operates within a supply voltage range of 1.71 V to 5.5 V. It functions at a working power current of 20 mA across temperatures from -40°C to +85°C. Housed in a TQFP-64 package with SMD/SMT installation style, it is designed for high-performance touch applications requiring robust embedded control capabilities.

Feature Summary

• Integrated Arm Cortex CPU for embedded processing
• Supports I2C and SPI communication interfaces
• Operates on 1.71 V to 5.5 V supply voltage
• Capacitive Touchscreen Controller type

Applications

• Capacitive touch interface systems
• Embedded control applications requiring integrated CPU
• Industrial or consumer electronics operating between -40°C and +85°C

Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm RoHS compliance status via the manufacturer's documentation. Check humidity sensitivity handling requirements during storage and assembly. Ensure the TQFP-64 package matches the target PCB footprint design specifications.

Selection Notes

Select this model when an integrated processor is required alongside touch sensing. The TQFP-64 package suits designs needing moderate pin counts. Verify that the 20 mA operating current fits the system power budget. Ensure the host system supports either I2C or SPI protocols for data exchange.

Part Context

This component belongs to the CYAT8165x series of TrueTouch controllers. It shares core architecture with other models in the family but differs in package and specific pin configuration. The integration of the Arm Cortex CPU distinguishes it from simpler passive touch controllers, allowing for more complex gesture recognition and filtering algorithms directly on the chip.

Replacement Considerations

Direct substitutes within the same series include CYAT81658-100AA48T, though it uses a TQFP-100 package. Cross-series replacements like CYAT61652-64AS48 offer similar functionality in the same TQFP-64 package but may have different temperature ratings or feature sets. Always verify pin compatibility and firmware requirements before substitution.