CYAT81685-100AS71

Touch Screen Controllers Overview

The Infineon Technologies CYAT81685-100AS71 is a capacitive touchscreen controller within the TrueTouch Standard Controller family. It integrates an Arm Cortex CPU and supports I2C and SPI interfaces for system communication. 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 features a 32-bit resolution and includes four ADC inputs for sensor signal processing. Designed for surface-mount applications, it is housed in a TQFP-100 package and functions reliably across an industrial temperature range from -40°C to +85°C.

Touch Screen Controllers Feature Summary

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

Touch Screen Controllers Applications

• Capacitive touchscreen controller integration
• Industrial human-machine interface (HMI) systems
• Embedded control panels requiring robust touch input

Touch Screen Controllers Procurement Notes

Verify the specific suffix designation against official Infineon documentation to confirm environmental compliance and temperature grade. Confirm minimum order quantities and packaging formats directly with authorized distributors or the manufacturer, as standard factory packaging may apply. Ensure lead times are validated prior to procurement planning due to potential supply chain variability.

Touch Screen Controllers Selection Notes

Select this component when a programmable touch controller with an integrated processor is required. The TQFP-100 package suits designs needing multiple GPIOs and interface lines. Verify that the system power supply aligns with the 1.71 V to 5.5 V operating range. Consider the -40°C to +85°C temperature rating for industrial or automotive-grade environments where standard commercial ranges are insufficient.

Touch Screen Controllers Part Context

This part belongs to the CYAT81685 series of TrueTouch Standard Controllers. Variants within this series differ primarily by operating temperature grades and environmental compliance suffixes. The CYAT81685-100AS71 represents a specific configuration optimized for industrial temperature ranges with standard packaging options.

Touch Screen Controllers Replacement Considerations

Cross-reference with other CYAT81685 variants such as CYAT81685-100AA71Z or CYAT81685-100AS77Z for different temperature ratings or compliance standards. Ensure pin compatibility and firmware requirements are matched before substitution.