CYAT81659-64AS48

Overview

The CYAT81659-64AS48 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch family. It integrates an ARM Cortex CPU for advanced signal processing and gesture recognition. 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 draws 20 mA during operation. Designed for surface-mount installation, it is housed in a TQFP-64 package. The component functions reliably across an industrial temperature range from -40°C to +105°C.

Feature Summary

• Integrated ARM Cortex CPU for programmable touch processing
• Supports both I2C and SPI communication protocols
• Wide operating voltage range from 1.71 V to 5.5 V
• Industrial temperature rating up to +105°C

Applications

• Capacitive touchscreen displays
• Interactive kiosks
• Industrial control panels

Procurement Notes

Verify the specific suffix AS48 against official datasheets to confirm pinout and electrical characteristics, as suffixes often denote packaging or temperature variants. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Check current availability status with authorized distributors, as lead times may vary significantly for this component series.

Selection Notes

Select this model when a dedicated microcontroller-based touch solution is required for complex gestures. Ensure the host system supports either I2C or SPI interfaces. Verify that the PCB layout accommodates the TQFP-64 package dimensions. Consider the 20 mA operating current for power budget calculations in battery-operated devices.

Part Context

This component belongs to the CYAT8165x series of TrueTouch controllers. These devices are designed to replace discrete touch solutions by integrating sensing, processing, and interface capabilities into a single chip. The series offers scalability for various display sizes and button configurations.

Replacement Considerations

Direct replacements within the same series include CYAT81659-64AA48. Verify functional equivalence regarding interface support and package compatibility before substitution. Cross-model comparisons should focus on specific suffix differences defined in official documentation.