CYAT81688-100AS61Z

Touch Screen Controllers Overview

The CYAT81688-100AS61Z is a capacitive touchscreen controller from Infineon Technologies' TrueTouch standard series. It operates within a supply voltage range of 1.71 V to 5.5 V and supports I2C and SPI interfaces. The device is housed in a TQFP-100 package with surface-mount installation. It functions reliably across an extended temperature range from -40°C to +105°C. The component includes humidity sensitivity features and is supplied in reel packaging, designed for integration into touch screen control systems requiring robust environmental performance.

Touch Screen Controllers Feature Summary

• Capacitive touchscreen controller with I2C and SPI interface support
• Extended operating temperature range from -40°C to +105°C
• TQFP-100 surface-mount package configuration
• Supply voltage range of 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Industrial human-machine interface (HMI) panels
• Automotive infotainment displays
• Medical device control interfaces

Touch Screen Controllers Procurement Notes

Verify the specific suffix 'S61' against official Infineon documentation to confirm the exact temperature grade and packaging specifications. Ensure compatibility with the host system's voltage levels and communication protocols before procurement. Confirm moisture sensitivity level handling requirements during storage and assembly processes.

Touch Screen Controllers Selection Notes

Select this model when an extended industrial temperature range up to +105°C is required, distinguishing it from commercial variants limited to +85°C. The TQFP-100 package suits designs needing a balance of pin count and footprint. Verify that the host microcontroller supports the necessary I2C or SPI clock speeds for optimal touch performance.

Touch Screen Controllers Part Context

This part belongs to the CYAT81688 family of TrueTouch controllers. Variants within this series differ primarily by package type (e.g., TQFP-128), operating temperature range, and packaging format (Reel vs. Tray). The '100' in the part number indicates the TQFP-100 package, while 'AS61' denotes the specific temperature and packaging configuration.

Touch Screen Controllers Replacement Considerations

Direct replacements include other CYAT81688 variants with matching TQFP-100 packages and extended temperature ratings, such as CYAT81688-100AS61KH, provided the packaging format (Reel) aligns with production needs. Cross-reference datasheets for pinout and electrical parameter compatibility.