CYAT81682-100AA61Z

Overview

The CYAT81682-100AA61Z 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 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. The component is housed in a TQFP-100 package suitable for SMD/SMT installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

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

Applications

• Capacitive touch interface controllers for mobile devices
• Human-machine interface systems in automotive infotainment
• Industrial control panels requiring robust touch sensing

Procurement Notes

Verify the specific suffix 'Z' indicates RoHS compliance and halogen-free status as per manufacturer specifications. Confirm the packaging type is Tray with a factory pack quantity of 900 units. Ensure design-in compatibility with the required operating temperature range of -40°C to +85°C for the AA grade variant.

Selection Notes

Select this model when a programmable processor core is required for complex gesture algorithms alongside standard touch detection. Compare against non-CPU variants if only basic coordinate reporting is needed. Verify that the TQFP-100 footprint matches the PCB layout constraints and that the 20 mA current consumption fits the system power budget.

Part Context

This component belongs to the Infineon TrueTouch Standard TS3xxx series, designed for high-performance capacitive touch applications. The CYAT81682 variant specifically targets applications requiring integrated processing capabilities to reduce host CPU load. The AA61Z designation specifies the electrical grade, packaging, and environmental compliance attributes within this product line.

Replacement Considerations

Direct pin-to-pin replacements within the same family include CYAT81682-100AA61 (Tray) or CYAT81682-100AA61ZT (Reel). Cross-family migration to other TrueTouch models requires firmware adaptation due to differing register maps and peripheral configurations.