ATMXT640UD-CCU002

Overview

The ATMXT640UD-CCU002 is a capacitive touchscreen controller from Microchip's maXTouch UD series, designed for high-performance touch applications. It features an 88-pin UFBGA package and supports I2C and SPI interfaces. The device operates within a supply voltage range of 1.71V to 3.47V and draws a typical supply current of 40 mA. It functions reliably across an operating temperature range of -40°C to +85°C. This component utilizes a unique charge-transfer acquisition engine for accurate sensing.

Feature Summary

• Supports up to 16 concurrent touches for multi-user interaction
• Adaptive Sensing technology ensures reliable operation under varying environmental conditions
• Capable of supporting thick lenses up to 10mm glass thickness
• Superior moisture performance enhances durability in humid environments

Applications

• Industrial control panels requiring robust touch input
• Medical devices needing reliable interface in varied climates
• Consumer electronics with thick glass cover lens designs
• Automotive infotainment systems operating in extreme temperatures

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the required interface configuration matches your system design. Ensure compatibility with the intended operating temperature range and supply voltage specifications. Check for any product change notifications or lifecycle status updates directly from the manufacturer.

Selection Notes

Select this component when high channel count and multi-touch capability are required. Consider the UFBGA package constraints for PCB layout and thermal management. Evaluate the need for I2C versus SPI communication based on system bus availability. Assess the benefit of adaptive sensing for environments with potential interference or moisture exposure.

Part Context

This part belongs to the ATMXT640U family of touchscreen controllers. It is distinct from other variants by its specific package type and interface support. The UD series indicates advanced sensing capabilities compared to earlier generations. It serves as a core component for implementing capacitive touch solutions in embedded systems.

Replacement Considerations

Direct substitutes may include other ATMXT640U variants with compatible pinouts. Verify electrical parameters and interface compatibility before substitution. Consult the manufacturer's cross-reference guide for approved alternatives. Ensure that any replacement maintains the required operating temperature and voltage ranges.