CYAT81688-128AA88

Touch Screen Controllers Overview

The CYAT81688-128AA88 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex-M0 CPU for advanced signal processing and gesture recognition. The device supports I2C and SPI interfaces with a 32-bit resolution. It operates on a supply voltage range of 1.71 V to 5.5 V, drawing 20 mA during operation. Designed for surface-mount installation in TQFP-128 packages, it functions within a temperature range of -40°C to +85°C.

Touch Screen Controllers Feature Summary

• Integrated Arm Cortex-M0 CPU for programmable touch processing
• Supports I2C and SPI communication interfaces
• Includes four dedicated ADC inputs for sensor configuration
• Operates within a wide voltage range of 1.71 V to 5.5 V

Touch Screen Controllers Applications

• Smartphones and mobile devices requiring multi-touch input
• Tablets and portable media players
• Industrial control panels with capacitive overlays

Touch Screen Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets before integration. Check humidity sensitivity classification (MSL) requirements for storage and reflow soldering processes. Ensure ordering suffixes match specific package and temperature grade requirements.

Touch Screen Controllers Selection Notes

Select this model for designs requiring embedded processing capabilities beyond basic touch detection. The TQFP-128 package suits applications needing multiple electrode connections. Verify that the host system supports the required 1.71 V to 5.5 V supply rails. Consider the 20 mA operating current for power budget calculations in battery-operated devices.

Touch Screen Controllers Part Context

This component belongs to the Infineon TrueTouch Standard TS3xxx series, designed for high-performance capacitive sensing. The CYAT81688 variant specifically targets complex user interface applications. It replaces older resistive touch solutions with higher durability and clarity options. The series is widely adopted in consumer electronics for reliable gesture support.

Touch Screen Controllers Replacement Considerations

Direct pin-to-pin replacements within the same family include CYAT81688-128AA88Z and CYAT81688-128AS88. Note that the 'Z' suffix indicates tape-and-reel packaging, while 'S' may denote extended temperature ranges. Validate firmware compatibility when substituting between variants.