MTCH6301-I/ML

Overview

The MTCH6301-I/ML is a projected capacitive touch controller from Microchip Technology, designed for integrating multi-touch and gesture interfaces. 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 -40ºC to +105ºC temperatures. Key electrical parameters include an I²C interface supporting up to 400 kbps, typical sleep current of 200 µA, and >100 reports per second for single touch. It provides up to ten simultaneous touches with 12-bit coordinate resolution.

Feature Summary

• Supports up to 13 RX and 18 TX channels with individual channel tuning
• Enables multi-touch (up to ten touches) and gesture detection including swipe and double-tap
• Operates via I²C interface at speeds up to 400 kbps with configurable sleep mode
• Compatible with PCB, film, glass, and flexible printed circuit sensors

Applications

• Human-machine interfaces with configurable buttons or scrolling functions
• Home automation control panels
• Security control keypads
• Automotive center stack controls
• Gaming devices and remote control touch pads

Procurement Notes

Verify the specific ordering suffix '-I/ML' corresponds to the 44-Lead QFN package variant as documented in official Microchip datasheets. Confirm that the 'I' designation meets the required industrial temperature range specifications (-40ºC to +105ºC) for the intended application environment before finalizing procurement.

Selection Notes

Select this component when designing systems requiring robust multi-touch capabilities with gesture support. Ensure the design accommodates the 44-lead QFN package dimensions and utilizes the provided configuration utility for sensor tuning. Verify that the host microcontroller supports the required I²C protocol and can handle the interrupt-driven data transmission format efficiently.

Part Context

The MTCH6301 belongs to Microchip's family of projected capacitive touch controllers. It is engineered to simplify the integration of rich user interfaces by handling complex signal acquisition and noise filtering internally. This allows designers to focus on application-specific features rather than low-level sensor management.

Replacement Considerations

Consult Microchip documentation for officially confirmed substitute part numbers. Do not assume cross-compatibility with other touch controllers without verifying pinout, voltage, and communication protocol alignment.

FAQ

What is the maximum number of simultaneous touches supported?

The MTCH6301 supports up to ten simultaneous touches.

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, all RX/TX pins are remappable via Pin Map registers to facilitate easier trace routing and board layout.