CYAT71658-56LWA41T

Overview

The CYAT71658-56LWA41T is a capacitive touchscreen controller from Infineon Technologies, part of the PSoC-based TrueTouch family. It operates within a supply voltage range of 1.71 V to 5.5 V and draws a typical operating current of 20 mA. The device supports I2C and SPI interfaces for system communication. Designed for surface-mount applications, it is housed in a QFN-56 package. The component functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Capacitive touchscreen controller based on PSoC architecture
• Supports I2C and SPI communication interfaces
• Operating voltage range: 1.71 V to 5.5 V
• Available in QFN-56 surface-mount package

Applications

• Capacitive touch interface implementation
• Consumer electronics with embedded touch controls
• Industrial control panels requiring robust touch sensing

Procurement Notes

Verify the specific suffix 'T' against official Infineon documentation to confirm tape-and-reel packaging status, as distributor listings may vary. Confirm RoHS compliance details directly with the manufacturer's datasheet. Ensure the QFN-56 footprint matches the target PCB design before procurement.

Selection Notes

Select this component when a dedicated capacitive touch controller with PSoC flexibility is required. Verify that the 20 mA operating current fits the power budget. Ensure the host system supports either I2C or SPI protocols. Check that the -40°C to +85°C operating range meets environmental requirements.

Part Context

This part belongs to the TrueTouch series of capacitive touch controllers. These devices are designed to provide high-performance touch sensing solutions. The model integrates processing capabilities typical of PSoC technology, allowing for customizable touch sensing parameters.