CYAT847AZA72-22002

Touch Screen Controllers Overview

The CYAT847AZA72-22002 is a PSoC™ Automotive Multitouch Generation 7XL slave controller designed for multi-chip capacitive touchscreen systems. It features a 32-bit Arm® Cortex® CPU and supports screen sizes up to 35 inches diagonal with up to 296 sense pins across the system. The device operates on a 3.0 V to 5.5 V analog supply and 1.71 V to 5.5 V logic supply, consuming approximately 260 mW in a 3-chip solution. It provides 72 sensing channels in a 100-pin TQFP package, supporting refresh rates up to 120 Hz and I²C communication at speeds up to 1 Mbps.

Touch Screen Controllers Feature Summary

• Multi-chip capacitive touchscreen controller with register-configurable 32-bit Arm® Cortex® CPU
• Supports screens up to 35-inch diagonal with up to 296 sense pins and 10320 intersections system-wide
• Integrated AutoArmor technology for electromagnetic emission and immunity improvement
• DualSense technology enabling water rejection, wet-finger tracking, and glove support (up to 5 mm thick)
• I²C slave interface supporting 100 kbps, 400 kbps, and 1 Mbps data rates

Touch Screen Controllers Applications

• Automotive infotainment systems requiring large display integration
• Multi-chip capacitive touchscreen implementations for vehicles
• Applications demanding high electromagnetic compatibility (EMC) performance

Touch Screen Controllers Procurement Notes

Verify the specific ordering suffix against the official Infineon datasheet summary to confirm pin count, package type, and temperature range. Ensure the design accounts for the multi-chip architecture requirements, as this component functions as a slave unit within a larger system configuration.

Touch Screen Controllers Selection Notes

Select this part for designs requiring a slave touch controller in a multi-chip setup supporting displays up to 35 inches. Confirm that the system utilizes the 100-pin TQFP package variant and requires 72 sensing channels. Validate power supply constraints for the 3.0 V to 5.5 V analog domain and ensure I²C bus speed compatibility with the host processor.

Touch Screen Controllers Part Context

This component belongs to the PSoC™ Automotive Multitouch Generation 7XL family, specifically the XL series designed for large-screen applications. It complements master controllers in a multi-chip topology to handle extensive sensor arrays, offering enhanced noise suppression and signal-to-noise ratio through effective 20-V drive capabilities.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same generation include other CYAT847X variants with different pin counts (e.g., CYAT847AZA61-22002 or CYAT847AZA77-22002), provided the sensing channel requirements match the application needs.