CYAT81688-128AS88Z

Touch Screen Controllers Overview

The Infineon Technologies CYAT81688-128AS88Z is a capacitive touchscreen controller within the TrueTouch Gen7XL series. It integrates an ARM Cortex CPU for on-chip processing of touch and acoustic feedback, enabling faster response times. The device supports I2C and SPI interfaces and operates on a supply voltage range of 1.71 V to 5.5 V with a typical operating current of 20 mA. Designed for automotive applications, it features a TQFP-128 package and functions reliably across an extended temperature range from -40°C to +105°C.

Touch Screen Controllers Feature Summary

• Integrates ARM Cortex CPU for on-chip touch and acoustic feedback processing
• Supports I2C and SPI communication interfaces
• Operates within a wide voltage range of 1.71 V to 5.5 V
• Rated for extended industrial temperatures from -40°C to +105°C

Touch Screen Controllers Applications

• Automotive infotainment systems
• Multi-touch display controllers
• HMI interfaces requiring acoustic feedback integration

Touch Screen Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Check humidity sensitivity handling requirements during storage and assembly. Validate lead times as production cycles may vary. Ensure packaging specifications match design constraints.

Touch Screen Controllers Selection Notes

Select this model for applications requiring integrated acoustic feedback processing alongside touch control. The TQFP-128 package suits designs needing multiple GPIOs. Verify interface compatibility with host processors supporting I2C or SPI. Consider the 20 mA operating current for power budget calculations. Ensure thermal management supports the +105°C maximum junction temperature.

Touch Screen Controllers Part Context

This part belongs to the CYAT81688 series of TrueTouch Gen7XL controllers. Variants like CYAT81688-128AS88 differ in package or temperature grade. The series targets advanced automotive HMI solutions. Other members include CYAT81688-100 variants with different pin counts.

Touch Screen Controllers Replacement Considerations

Direct substitutes within the same family include CYAT81688-128AS88. Verify if suffix changes affect temperature rating or packaging. Cross-reference electrical parameters before substitution.