ATMXT640T-CCU048

Overview

The ATMXT640T-CCU048 is a maXTouch capacitive touchscreen controller from Microchip Technology. It supports up to 112 nodes for touch and gesture detection. The device operates on a supply voltage range of 1.71V to 3.47V and draws 40mA during operation. It features I2C and SPI interfaces for communication. The component is housed in an 88-UFBGA package with dimensions of 6x6 mm. It functions within a temperature range of -40°C to +85°C and meets RoHS3 standards.

Feature Summary

• Supports 112-node capacitive sensing for multi-touch and gesture recognition
• Dual interface support via I2C and SPI protocols
• Operates at supply voltages between 1.71V and 3.47V
• Available in compact 88-UFBGA (6x6mm) surface-mount package

Applications

• Smartphones and mobile devices requiring multi-touch input
• Tablets and portable computing devices
• Industrial control panels with capacitive overlays
• Automotive infotainment systems

Procurement Notes

Verify the specific suffix CCU048 against official Microchip documentation to confirm pinout and packaging details. Ensure compatibility with existing firmware configurations for the maXTouch family. Check moisture sensitivity level (MSL 3) requirements for storage and handling procedures prior to assembly.

Selection Notes

Select this model when 112 sensing nodes are sufficient for the application's touch matrix. Compare power consumption specifications against other maXTouch variants if battery life is critical. Confirm that the host processor supports the required I2C or SPI clock speeds for optimal performance.

Part Context

This part belongs to the maXTouch series, designed for high-performance capacitive touch applications. It integrates touch processing and gesture algorithms directly into the hardware, reducing host CPU load. The T suffix typically denotes a specific package variant within the broader ATMXT640 product line.

Replacement Considerations

Direct replacements include other ATMXT640 variants with compatible packages. Verify electrical parameters and pin assignments before substituting. Cross-reference with Microchip's official obsolescence notices for alternative recommendations.