MTCH6301T-I/ML

Overview

The MTCH6301T-I/ML is a projected capacitive touch controller from Microchip Technology, designed for multi-touch and gesture integration. It supports up to 13 RX and 18 TX channels with self and mutual capacitive scanning. The device operates on a 2.4V to 3.6V supply within an industrial temperature range of -40°C to +105°C. Communication is handled via an I²C interface at speeds up to 400 kbps. Key performance metrics include over 100 reports per second for single touch and over 60 for dual touch, utilizing 12-bit coordinate resolution.

Feature Summary

• Supports up to ten simultaneous touches and gesture detection including swipe, scroll, and double-tap.
• Features configurable sleep mode with typical 200 µA current consumption and integrated power management resets.
• Includes built-in noise detection and filtering algorithms for reliable operation in noisy environments.
• Provides flexible sensor layout configuration with remappable RX/TX pins and scaling coefficients.

Applications

• Human-machine interfaces with configurable buttons, keypads, or scrolling functions
• Single-finger gesture-based interfaces for swipe, scroll, or double-tap controls
• Home automation control panels and security control keypads
• Automotive center stack controls and gaming devices
• Remote control touch pads

Procurement Notes

Verify the specific suffix 'I/ML' corresponds to the 44-lead QFN package and industrial temperature grade (-40°C to +105°C) as defined in the official datasheet. Confirm that the ordering information matches the required tape and reel packaging specifications for automated assembly processes.

Selection Notes

Select this component when designing systems requiring up to 13 RX and 18 TX channels for complex XY screens or touchpads. Ensure the host microcontroller supports I²C communication and can handle the interrupt-driven data protocol. Verify that the application cover layer thickness falls within the supported limits of 3 mm for plastic or 5 mm for glass.

Part Context

The MTCH6301 is part of Microchip's mTouch sensing solution family. It utilizes a sophisticated combination of self and mutual capacitive scanning to enable rich user interfaces. The device is often paired with Microchip's Projected Capacitive Configuration Utility for tuning and optimization during the design phase.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip's official resources for potential cross-references or updated components within the same product family.

FAQ

What is the default I²C address for the MTCH6301?

The 7-bit base address is 0x25. When combined with the read/write bit, the write address becomes 0x4A and the read address becomes 0x4B.

How does the device signal data availability to the master controller?

The INT pin is asserted high whenever new touch or gesture data is ready for transmission, prompting the master to initiate a read command.

Can the RX and TX pins be remapped?

Yes, the RX and TX lines are configurable via Pin Map register arrays to facilitate convenient trace routing and board layout, although a single pin cannot function as both RX and TX concurrently.