CYAT81688-100AS77KH

Touch Screen Controllers Overview

The CYAT81688-100AS77KH is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an ARM Cortex CPU and supports I2C and SPI interfaces. The device operates within a supply voltage range of 1.71 V to 5.5 V and features a 32-bit resolution with four ADC inputs. Designed for surface-mount installation, it is housed in a TQFP-100 package. The component functions as a data converter IC and supports CMOS input types across an operating temperature range of -40°C to +105°C.

Touch Screen Controllers Feature Summary

• Integrated ARM Cortex CPU for processing touch data
• Supports I2C and SPI communication interfaces
• Operates on supply voltages between 1.71 V and 5.5 V
• Includes four dedicated ADC inputs for sensor signals

Touch Screen Controllers Applications

• Capacitive touchscreen controller implementations
• Embedded systems requiring TrueTouch interface compatibility
• Data conversion applications involving touch sensors

Touch Screen Controllers Procurement Notes

Verify availability status before ordering, as this specific suffix variant may have restricted distribution channels or limited stock compared to standard versions. Confirm moisture sensitivity handling requirements during storage and assembly processes. Ensure the TQFP-100 package footprint matches the design layout. Cross-reference the datasheet for any specific ordering suffix definitions that might affect electrical characteristics or packaging details.

Touch Screen Controllers Selection Notes

Select this model when a TQFP-100 package is required for the CYAT81688 series. Verify that the industrial temperature range (-40°C to +105°C) meets the application environment. Compare against CYAT81688-100AS77Z if extended commercial ranges are insufficient. Ensure the system power supply aligns with the 1.71 V to 5.5 V operational window. Check for compatible firmware support for the specific hardware revision associated with this part number.

Touch Screen Controllers Part Context

This component belongs to the Infineon CYAT81688 series of TrueTouch controllers. It shares core architecture with variants like CYAT81688-100AS77 and CYAT81688-100AS77Z but differs in package or environmental rating specifications defined by the suffix. The series utilizes ARM Cortex technology for efficient touch processing.