CYAT81682-128AA88Z

Touch Screen Controllers Overview

The CYAT81682-128AA88Z is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch Standard TS3xxx family. It integrates an Arm Cortex 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, it is housed in a TQFP-128 package. The component functions within a temperature range of -40°C to +85°C and includes four ADC inputs for sensor configuration.

Touch Screen Controllers Feature Summary

• Integrates an Arm Cortex CPU for programmable touch processing and gesture detection
• Supports dual communication protocols via I2C and SPI interfaces
• Operates with a wide supply voltage range from 1.71 V to 5.5 V
• Housed in a TQFP-128 surface-mount package suitable for high-density designs

Touch Screen Controllers Applications

• Smartphones and mobile communication devices
• Tablets and portable computing devices
• Automotive infotainment and control systems
• Industrial human-machine interface (HMI) panels

Touch Screen Controllers Procurement Notes

Verify the specific suffix 'Z' against the manufacturer's current datasheet to confirm RoHS compliance status and any minor electrical variations. Confirm the TQFP-128 package dimensions match the target PCB footprint. Check humidity sensitivity levels and required baking procedures before assembly to ensure reliability during soldering processes.

Touch Screen Controllers Selection Notes

Select this model when a dedicated microcontroller-based touch solution is required for complex gesture handling. Ensure the design accommodates the TQFP-128 package size and pin count. Verify that the system power supply can maintain stability within the 1.71 V to 5.5 V operating range. Consider the 20 mA active current consumption for battery-powered applications requiring extended standby times.

Touch Screen Controllers Part Context

This component belongs to the CYAT81682 series, which utilizes PSoC technology for flexible touch sensing. The '128' indicates the 128-pin TQFP package variant. The 'AA88' suffix typically denotes specific packaging or environmental compliance options. It serves as a direct replacement for previous generation TrueTouch controllers in existing hardware designs requiring similar form factors.

Touch Screen Controllers Replacement Considerations

Direct substitutes include other variants within the CYAT81682 family, such as CYAT81682-128AA88, provided the packaging suffix differences are acceptable. Cross-model compatibility with older TrueTouch Standard TS3xxx series parts should be verified through pinout and firmware migration analysis.