CYAT837AZA88-42002

Overview

The CYAT837AZA88-42002 is a multi-chip capacitive touchscreen controller from the PSoC™ Automotive Multitouch Generation 7XL series. It features an integrated 32-bit Arm® Cortex® CPU and supports screen sizes up to 35 inches with up to 296 sense pins and 10,320 intersections. The device operates on a 3.0 V to 5.5 V analog supply and 1.71 V to 5.5 V logic supply. It provides up to 120 Hz refresh rates and reports up to ten fingers. The component is housed in a 128-pin TQFP package and is qualified to AEC-Q100 standards for automotive applications.

Feature Summary

• Multi-chip architecture supporting screens up to 35-inch diagonal with 296 sense pins
• Integrated 32-bit Arm® Cortex® CPU with register configurability
• Advanced noise suppression including DisplayArmor, AutoArmor, and DualSense water rejection
• Supports thin gloves (≤1 mm) and thick gloves (≤5 mm) with automatic mode switching

Applications

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

Procurement Notes

Verify the specific ordering code suffix against the manufacturer's current documentation to ensure correct package type and temperature range. Confirm that the system design accommodates the multi-chip configuration requirements. Check for updated revision history regarding firmware or hardware changes before finalizing procurement specifications.

Selection Notes

Select this model for applications requiring large display support up to 35 inches and high finger count reporting. Ensure the host interface supports I2C slave rates up to 1 Mbps. Verify power supply constraints match the 3.0 V to 5.5 V analog and 1.71 V to 5.5 V digital requirements. Consider the 128-pin TQFP package dimensions for PCB layout compatibility.

Part Context

This component belongs to the PSoC™ Automotive Multitouch Generation 7XL family, designed specifically for automotive electronics. It complements other variants in the series by offering a balance of sense channels and processing capabilities suitable for mid-to-large size automotive touch interfaces.

Replacement Considerations

Direct replacements within the same generation include CYAT837AZS88-42002 (extended temperature range) or models with different sense pin counts such as CYAT837AZA98-42002. Cross-generation upgrades may require firmware adaptation due to architectural differences.