CYAT81685-100AA71Z

Touch Screen Controllers Overview

The CYAT81685-100AA71Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex CPU for advanced signal processing and gesture recognition. The device operates on a supply voltage range of 1.71 V to 5.5 V with a typical operating current of 20 mA. It supports I2C and SPI interfaces and features four ADC inputs. Designed for surface-mount installation, it is housed in a TQFP-100 package and functions within a temperature range of -40°C to +85°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex CPU for complex touch algorithms
• Dual interface support: I2C and SPI
• Four dedicated ADC inputs for sensor configuration
• Wide supply voltage range: 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Smartphones and mobile devices
• Tablets and portable media players
• Industrial control panels requiring multi-touch input

Touch Screen Controllers Procurement Notes

Verify humidity sensitivity classification before storage and handling, as the component is moisture-sensitive. Confirm the specific suffix '71Z' aligns with required environmental ratings and packaging specifications against the official datasheet. Ensure compatibility with the target system's voltage levels and interface protocols prior to integration.

Touch Screen Controllers Selection Notes

Select this model when high-performance gesture recognition and multi-touch capabilities are required. The integrated CPU allows for custom algorithm implementation without external processors. Verify that the TQFP-100 package fits the PCB layout constraints and that the 1.71 V to 5.5 V supply range matches the system power design.

Touch Screen Controllers Part Context

This component belongs to the CYAT81685 series, which utilizes the TrueTouch Standard technology. It is designed to replace older resistive or simpler capacitive controllers in modern high-resolution displays. The series emphasizes low power consumption and robust performance in noisy electrical environments common in consumer electronics.

Touch Screen Controllers Replacement Considerations

Check for pin-compatible alternatives within the same TrueTouch family if availability is constrained. Ensure any substitute maintains the same CPU architecture and interface support for firmware compatibility.