CYAT81688-100AA61

Touch Screen Controllers Overview

The Infineon Technologies CYAT81688-100AA61 is a capacitive touchscreen controller within the TrueTouch family, designed for high-performance human-machine interfaces. It integrates an ARM Cortex CPU and supports I2C and SPI communication interfaces. 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. The component is housed in a TQFP-100 surface-mount package and is rated for industrial temperature operation between -40°C and +85°C.

Touch Screen Controllers Feature Summary

• Integrated ARM Cortex CPU for advanced touch processing
• Supports I2C and SPI digital communication interfaces
• Operates within a wide voltage range of 1.71 V to 5.5 V
• Industrial temperature rating from -40°C to +85°C

Touch Screen Controllers Applications

• Capacitive touch interface controllers for consumer electronics
• Industrial control panels requiring robust environmental tolerance
• Embedded systems utilizing ARM-based processing cores

Touch Screen Controllers Procurement Notes

Verify the specific suffix requirements for packaging configuration before ordering. The standard version utilizes tray packaging with a factory quantity of 900 units. Confirm that the selected variant meets the required thermal and electrical specifications for the target application environment.

Touch Screen Controllers Selection Notes

Select this model when an integrated processor core is required for complex gesture recognition or multi-touch algorithms. Ensure the host system supports the necessary I2C or SPI protocols. Verify that the TQFP-100 footprint aligns with the PCB layout constraints and that the power supply can maintain stability within the 1.71 V to 5.5 V operational window.

Touch Screen Controllers Part Context

This component belongs to the Infineon CYAT81688 series of TrueTouch controllers. It shares architectural similarities with variants such as the CYAT81688-100AA61Z and CYAT81688-100AA61T, which differ primarily in packaging type (Tray vs. Reel) and maximum operating temperature ratings.

Touch Screen Controllers Replacement Considerations

Direct substitutes include CYAT81688-100AA61Z for tray-packaged equivalents and CYAT81688-100AA61T for reel-packaged versions. Note that the 'T' variant may support an extended maximum operating temperature of +105°C compared to the standard +85°C limit.