CYAT81655-100AA48T

Overview

The CYAT81655-100AA48T 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 host 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-100 package. The component functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated ARM Cortex CPU for efficient touch processing
• Supports both I2C and SPI communication protocols
• Wide operating voltage range from 1.71 V to 5.5 V
• Housed in a TQFP-100 surface-mount package

Applications

• Capacitive touchscreen systems
• Industrial control panels
• Automotive infotainment displays

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging versus the standard tray configuration found in other variants like the CYAT81655-100AA48. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure compatibility with the required host interface speeds and voltage domains.

Selection Notes

Select this model when a 100-pin form factor is required for larger touch arrays or complex gesture handling. Compare against the CYAT81655-64AA48T if a smaller footprint is acceptable. Verify that the system power budget accommodates the 20 mA operating current requirement under all load conditions.

Part Context

This component belongs to the CYAT8165x series of TrueTouch controllers. It shares core architectural features with siblings such as the CYAT81655-100AA48, differing primarily in packaging format. The series utilizes PSoC-based technology to deliver high-performance capacitive sensing capabilities.