ATMXT640UD-CCUR002

Overview

The ATMXT640UD-CCUR002 is a capacitive touchscreen controller from Microchip Technology's maXTouch series. It supports up to 112 nodes for touch, gesture, and key detection. The device operates on a supply voltage range of 1.71V to 3.47V and features I2C and SPI communication interfaces. It is housed in an 88-UFBGA package (6x6 mm) with a moisture sensitivity level of 3. The component is designed for industrial temperature ranges, typically operating between -40°C and +85°C.

Feature Summary

• Supports up to 112 nodes for multi-touch, gesture, and key input
• Dual interface support for I2C and SPI communications
• Operates within a supply voltage range of 1.71V to 3.47V
• Available in an 88-UFBGA (6x6 mm) surface-mount package

Applications

• Industrial human-machine interfaces (HMI)
• Medical equipment control panels
• Automotive infotainment systems
• Consumer electronics with capacitive touch requirements

Procurement Notes

Verify the specific suffix '002' against official Microchip documentation to confirm pinout, firmware, or packaging variations compared to similar variants like CCUR001. Check current availability status as distribution channels may list this part as obsolete or limited stock. Ensure compliance with RoHS and REACH regulations required for your region before procurement.

Selection Notes

Select this component when a high node count (up to 112) is required for complex gestures or large touch areas. The dual I2C/SPI interface offers flexibility for system integration. Ensure the PCB layout accommodates the 88-UFBGA package dimensions and thermal requirements. Verify that the host processor supports the required communication protocols and voltage levels.

Part Context

This part belongs to the ATMXT640U family of maXTouch controllers. Variants within this family often share core functionality but differ in package type, temperature rating, or internal configuration. The 'UD' designation typically indicates a specific package variant, while 'CCUR002' denotes the specific ordering suffix for this revision.

Replacement Considerations

Direct replacements may include other ATMXT640U variants such as ATMXT640UD-CCUR001 if pin-compatible and functionally equivalent. Cross-referencing datasheets is essential to verify node counts, interface compatibility, and package dimensions before substitution.