CYAT81682-100AA71Z

Touch Screen Controllers Overview

The Infineon Technologies CYAT81682-100AA71Z is a capacitive touchscreen controller within the TrueTouch Standard Series. It integrates an Arm Cortex CPU and supports I2C and SPI interfaces for system communication. The device operates on a supply voltage ranging from 1.71 V to 5.5 V with a typical operating current of 20 mA. It features a 32-bit resolution and includes four ADC inputs for sensor signal processing. The component is housed in a TQFP-100 package and is rated for commercial temperature operation between -40°C and +85°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex CPU architecture for advanced touch processing
• Dual interface support via I2C and SPI protocols
• Wide supply voltage range from 1.71 V to 5.5 V
• Four dedicated ADC inputs for capacitive sensing

Touch Screen Controllers Applications

• Capacitive touchscreen controllers for consumer electronics
• Industrial control panels requiring robust touch input
• Automotive infotainment systems with extended temperature tolerance

Touch Screen Controllers Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance status as detailed in the manufacturer's documentation. Confirm the maximum operating temperature rating of +85°C aligns with the target application environment, distinguishing it from industrial variants rated up to +105°C. Ensure ESD handling procedures are followed due to moisture sensitivity classification.

Touch Screen Controllers Selection Notes

Select this model when a commercial grade temperature range (-40°C to +85°C) is sufficient for the design. The TQFP-100 package requires appropriate PCB footprint planning for surface mount assembly. Verify that the host system can support both I2C and SPI communication protocols if interface flexibility is required.

Touch Screen Controllers Part Context

This part belongs to the Infineon TrueTouch Standard Series, designed for high-performance capacitive touch applications. The CYAT81682 family offers scalable solutions for various display sizes. The 'AA71Z' suffix typically denotes specific packaging or environmental compliance variations within the standard product line.

Touch Screen Controllers Replacement Considerations

Cross-reference with other CYAT81682 variants such as CYAT81682-100AS71 for industrial temperature ranges (+105°C). Ensure pin compatibility and software driver support remain consistent when substituting within the same series.