MTCH6303-I/RG

Overview

The MTCH6303-I/RG is a projected capacitive touch controller in a 9x9 mm QFN-64 package. It supports up to 27 RX and 19 TX channels, enabling multi-touch tracking for ten fingers at rates typically exceeding 100 Hz for five simultaneous touches. The device integrates gesture recognition for taps, swipes, scrolling, pinching, and zooming. Communication is selectable via I²C or USB using the COMM_SEL pin. It operates on a 3 V supply and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Multi-touch support for up to ten simultaneous touches with predictive tracking
• Integrated single and multi-finger gesture recognition suite (taps, swipes, scrolling, pinch/zoom)
• Dual communication interface: I²C or USB, selected via hardware pin
• Advanced noise avoidance techniques for reliable operation in noisy environments

Applications

• Industrial control panels and security systems
• Home and office automation devices including thermostats and lighting controls
• Consumer electronics such as exercise equipment and audio systems
• Printers and medical input devices

Procurement Notes

Verify the specific suffix '-I/RG' corresponds to the 9x9 mm QFN-64 package variant. Confirm that the required MTCH652 high-voltage line driver is included in the bill of materials, as it is necessary for full functionality. Ensure firmware updates are handled via the integrated Library Loader bootloader if runtime configuration changes are needed.

Selection Notes

Select this component when designing projected capacitive touch interfaces requiring pre-programmed gesture processing to reduce host CPU load. The 27x19 channel capacity supports touch screens up to approximately 8 inches. Verify that the system power budget accommodates the 27 mA full-scan current consumption. Ensure the PCB layout allows for proper decoupling near VDD pins to maintain signal integrity.

Part Context

This part belongs to the MTCH6303 family of turnkey touch controllers. It is designed to work in conjunction with the MTCH652 boost converter to drive TX electrodes. The device serves as a bridge between physical touch sensors and host processors, offloading complex signal processing and gesture decoding tasks from the main microcontroller.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.