CYAT81682-100AA77Z

Touch Screen Controllers Overview

The CYAT81682-100AA77Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex-M 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. Packaged in a TQFP-100 format, it is designed for surface-mount installation and functions within a temperature range of -40°C to +85°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex-M CPU for programmable touch processing
• Supports I2C and SPI communication interfaces
• Includes four dedicated ADC input channels
• Operates within a wide voltage range of 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Capacitive touchscreen panels for mobile devices
• Industrial control interfaces requiring robust touch sensing
• Consumer electronics with multi-touch capabilities

Touch Screen Controllers Procurement Notes

Verify the specific suffix AA77Z against the manufacturer's latest datasheet to confirm the commercial temperature grade (+85°C) and packaging type (Tray). Ensure compliance with humidity sensitivity levels before storage and reflow soldering processes. Cross-reference the Mouser number 727-CYAT81682100AA7Z for accurate sourcing details.

Touch Screen Controllers Selection Notes

Select this component when a dedicated MCU-based touch controller is required for complex gesture handling. Compare the TQFP-100 package constraints with available PCB space. Verify that the system power supply can maintain stability between 1.71 V and 5.5 V during peak operation currents of approximately 20 mA.

Touch Screen Controllers Part Context

This model belongs to the Infineon CYAT81682 series, which utilizes the TrueTouch technology platform. Variants within this series differ primarily by temperature ratings and packaging formats, such as tray versus reel configurations. The AA77Z designation specifically identifies the commercial grade variant suitable for standard consumer applications.

Touch Screen Controllers Replacement Considerations

Direct substitutes include other CYAT81682 variants like CYAT81682-100AS77Z for extended temperature ranges or CYAT81682-100AA61Z for different packaging options. Ensure pin compatibility and firmware support when swapping between these related models.