CYAT81689-100AA77Z

Touch Screen Controllers Overview

The CYAT81689-100AA77Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch 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 consumes 20 mA during operation. It features a 32-bit resolution and includes four ADC inputs. Designed for surface-mount installation, it is housed in a TQFP-100 package. The component functions reliably across temperatures from -40°C to +85°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex CPU architecture
• Supports I2C and SPI communication protocols
• Operates on 1.71 V to 5.5 V power supply
• Includes four dedicated ADC inputs

Touch Screen Controllers Applications

• Capacitive touchscreen systems
• Human-machine interface (HMI) controllers
• Smart sensing applications

Touch Screen Controllers Procurement Notes

Verify the specific suffix AA77Z against official Infineon documentation to confirm pinout and functional variations relative to other CYAT81689 variants. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure compliance with RoHS directives as indicated in manufacturer specifications.

Touch Screen Controllers Selection Notes

Select this model when a TQFP-100 package is required for the CYAT81689 series. Verify that the operating temperature range of -40°C to +85°C meets system requirements. Confirm interface compatibility with I2C or SPI buses and ensure the 20 mA current consumption fits the power budget.

Touch Screen Controllers Part Context

This component belongs to the Infineon TrueTouch capacitive touch controller lineup. It utilizes PSoC-based technology for gesture recognition and multi-touch capabilities. The device is categorized under data converter ICs and touch screen controllers within the manufacturer's portfolio.

Touch Screen Controllers Replacement Considerations

Cross-reference with CYAT81689-100AA61Z for potential pin-compatible alternatives within the same package. Verify electrical parameters and software compatibility before substituting.