CYAT81658-64AS48

Overview

The CYAT81658-64AS48 is an automotive-grade, PSoC-based multitouch all-points touchscreen controller from Infineon Technologies. It features a 32-bit Arm Cortex CPU and supports up to 48 sense pins with 560 intersections for screens up to 8.5 inches. The device operates on 1.71–1.95 V and 3.0–5.5 V supplies, consuming 9 mW average power. It includes AutoArmor noise suppression, DualSense water rejection, and glove tracking. Communication interfaces include I2C (up to 400 kbps) and SPI (up to 8 Mbps).

Feature Summary

• AEC Q100 qualified for automotive applications.
• Supports up to 48 sense pins, 560 intersections, and reports ten fingers.
• Integrated 32-bit Arm Cortex CPU with register configuration.
• Features AutoArmor noise suppression and DualSense wet-finger tracking.

Applications

• Automotive infotainment systems.
• Vehicle instrument clusters.
• Rear-seat entertainment displays.

Procurement Notes

Verify the ordering suffix 'S' indicates the -40 °C to +105 °C temperature range and 'T' indicates tape-and-reel packaging if applicable. Confirm that the specific part number matches the required package type and sensor pin count before procurement.

Selection Notes

Select this model for applications requiring high-temperature operation (-40 °C to +105 °C) and support for thick overlays or gloves. Ensure the system design accommodates the 64-pin TQFP package and utilizes the available I2C or SPI interfaces for host communication.

Part Context

This component belongs to the CYAT8165X/7165X family of PSoC Automotive Multitouch controllers. It is specifically designed for touchscreen applications, distinguishing it from trackpad variants like the CYAT7165X series.

Replacement Considerations

Other members of the CYAT8165X family may serve as alternatives if they match the required temperature grade and package. Verify compatibility regarding sense pin counts and feature sets such as wake-up button support.