CYAT847AZA88-42002

Touch Screen Controllers Overview

The CYAT847AZA88-42002 is a capacitive touchscreen controller from the PSoC™ Automotive Multitouch Generation 7XL series, designed for multi-chip automotive applications. It features a 32-bit Arm® Cortex® CPU and supports screen sizes up to 35 inches diagonal with a 6-mm electrode pitch. The device operates on a 3.0 V to 5.5 V analog supply and 1.71 V to 5.5 V logic/digital I/O supply. It provides up to 88 sense pins and reports ten fingers of touch input. Key performance metrics include a refresh rate up to 120 Hz and TX frequency up to 150 kHz.

Touch Screen Controllers Feature Summary

• Multi-chip slave configuration with register-configurable 32-bit Arm® Cortex® CPU
• Supports screens up to 35-inch diagonal with 88 sense pins and 10-finger reporting
• Integrated AutoArmor technology for electromagnetic emission and immunity improvement
• DualSense technology enabling water rejection and wet-finger tracking

Touch Screen Controllers Applications

• Automotive infotainment systems requiring large display support
• Vehicle cockpit interfaces utilizing multi-chip architectures
• Touchscreen controllers for LCD, AMOLED, and IPS displays

Touch Screen Controllers Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature range. Confirm the sensor configuration aligns with the system design as this part functions as a slave in a multi-chip setup. Ensure compatibility with the primary host communication interface rates of 100 kbps, 400 kbps, or 1 Mbps via I2C.

Touch Screen Controllers Selection Notes

Select this component for designs requiring scalable multi-chip solutions supporting up to 35-inch screens. Choose based on the need for 88 sense pins and the specific operating temperature range (Automotive-A: -40°C to 85°C). Consider the power consumption requirements, noting the 260 mW consumption for a 3-chip solution configuration.

Touch Screen Controllers Part Context

This part belongs to the CYAT837X/847X family, specifically designated as a Generation 7XL slave controller. It is part of Infineon's portfolio aimed at meeting strict automotive standards, including AEC-Q100 qualification. The '88' in the model number indicates the specific count of sense I/Os available for this variant.

Touch Screen Controllers Replacement Considerations

Direct replacements within the same family include CYAT837AZA88-42002 (Master) or other CYAT847 variants with different pin counts such as CYAT847AZA98-42002 or CYAT847AZA77-42002, provided the system architecture accommodates master/slave distinctions and pin differences.