Touchscreen Controller 2 Wire Capacitive I2C Interface 20-VQFN (3x3) The MTCH2120-V/REB specification defines the engineering requirements for a capacitive touch sensing controller integrated circuit designed for human-machine interface applications in embedded electronic systems. This specification establishes the functional, electrical, mechanical, environmental, and quality requirements necessary to ensure accurate touch detection, stable system performance, and reliable operation across consumer, industrial, and embedded environments. The device is intended for use in applications requiring touch-based user input such as control panels, interface buttons, and capacitive sensing surfaces. It provides robust sensing performance with immunity to noise and environmental variation, enabling reliable detection of touch events in compact and low-power electronic designs. Engineering Requirements The integrated circuit shall be manufactured using qualified semiconductor fabrication processes to ensure consistent sensing performance, low power consumption, and long-term operational stability. The device shall support reliable capacitive touch detection under defined electrical and environmental conditions without degradation of sensitivity or accuracy. The sensing architecture shall provide stable touch event detection with immunity to electrical noise, environmental interference, and parasitic capacitance variations. The system shall maintain consistent performance across intended operating conditions including temperature variation and supply voltage fluctuation. Electrical characteristics shall ensure stable digital communication, accurate sensing response, and reliable operation during startup, normal operation, and power transitions. The device shall maintain functional integrity during dynamic system conditions without false triggering or loss of sensitivity. Mechanical and package construction shall be suitable for surface-mount assembly and shall ensure robustness during soldering, handling, and long-term operation. Workmanship shall be free from defects such as contamination, cracks, bonding issues, or structural inconsistencies that could impact electrical or mechanical reliability. Inspection, validation, and testing shall be performed using controlled procedures and calibrated equipment to ensure compliance with all applicable engineering and quality requirements. Any deviation from this specification shall require formal engineering review, documented justification, and approval through established change control processes. Documentation Supporting documentation shall include official datasheets, reference design materials, electrical characterization reports, qualification data, inspection records, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure traceability and consistency. Revision Control All modifications to this specification shall be managed through formal engineering change control procedures. Each revision shall undergo technical evaluation, validation, and approval prior to implementation to ensure continued compliance with design intent and applicable standards. #EngineeringSpecification #CapacitiveTouch #HMI #MicrochipTechnology #EmbeddedSystems #UserInterface #SensorIC #LowPowerDesign #ElectronicsDesign #QualityAssurance #EngineeringDocumentation

8 Position Connector Receptacle, Center Strip Contacts Surface Mount Gold The TE Connectivity part 2386586-1 is a fine-pitch board-to-board (BTB) PCB receptacle connector designed for compact, high-density electronic devices. It is a vertical surface-mount connector with 8 positions and a 0.4 mm pitch, commonly used in portable electronics, embedded systems, and space-constrained PCB designs. Key Features Connector Type: PCB mount receptacle Connector System: Board-to-board (BTB) Positions: 8-pin Pitch: 0.4 mm fine pitch Rows: 2 Mounting Style: Surface mount (SMT) Orientation: Vertical Stack Height: 0.8 mm low-profile design Contact Plating: Gold (Au) Contact Material: Copper alloy Rated Current: 0.5 A max per contact Operating Voltage: 60 VDC Temperature Range: −40 °C to +85 °C Housing Material: High-temperature thermoplastic Application: Signal transmission in compact electronics Packaging: Tape & Reel for automated assembly This connector is optimized for: Compact embedded systems Wearables and handheld devices High-density PCB stacking Consumer electronics Low-profile modular designs

7.2VA Power Transformer 3.3V Primary 6V Secondary Chassis Mount The DA2304-ALD is a compact surface-mount isolation power transformer manufactured by Coilcraft. It is designed primarily for low-voltage DC/DC converter applications, especially in circuits that require galvanic isolation. It is commonly used together with ICs like isolated power drivers (e.g., SN6501) to generate isolated power rails. Type: Isolation / power transformer Mounting: Surface-mount (SMT) Primary Voltage: 3.3 V Secondary Voltage: 6 V (typical) Power Rating: ~7.2 W Turns Ratio: 1 : 2.2 Isolation Voltage: up to 2500 Vrms Windings: Dual primary and dual secondary Core Material: Ferrite Operating Temp: −40°C to +125°C Isolated DC/DC converters Industrial communication interfaces (RS-485, CAN, etc.) Medical or safety-isolated systems Powering isolated gate drivers or transceivers Small footprint (~10 × 8 mm, low profile ~6 mm) #Transformer

Accelerometer X, Y, Z Axis ±400g 160Hz ~ 2.56kHz 16-LGA (3x3.25) The ADXL373BCCZ-RL7 is an ultralow power, high-g digital MEMS accelerometer developed by Analog Devices for motion sensing and impact detection applications. The device is optimized for battery-powered and always-on systems requiring continuous acceleration monitoring with minimal power consumption. It supports selectable measurement ranges suitable for shock, vibration, and activity monitoring in industrial, wearable, medical, asset tracking, and IoT applications. The accelerometer integrates embedded motion detection features, a FIFO buffer, and interrupt capabilities to reduce host processor workload and overall system power consumption. Engineering Specification Device Type Ultralow power 3-axis digital MEMS accelerometer Manufacturer Analog Devices Inc. Manufacturer Part Number ADXL373BCCZ-RL7 Measurement Axes Three-axis acceleration sensing Acceleration Range Selectable full-scale ranges supporting high-g measurements up to ±400 g Output Interface SPI digital serial communication interface Resolution High-resolution digital acceleration output with integrated filtering and signal conditioning Power Supply Requirement Operates from a low-voltage DC supply suitable for portable and embedded systems Power Consumption Designed for extremely low current operation during measurement and wake-up monitoring modes Embedded Features Integrated activity detection Motion and impact sensing FIFO data buffering Interrupt generation Wake-up detection functionality Sampling and Performance Programmable output data rates and filtering options for optimized noise and bandwidth performance Operating Temperature Range Industrial temperature range suitable for harsh environmental applications Package Type LGA surface-mount package Mounting Style Surface mount technology Application Areas Impact event recording Condition monitoring Asset tracking Industrial sensing Wearable electronics Portable instrumentation Shock and vibration monitoring Always-on motion detection systems #commonpartslibrary #integratedcircuit #accelerometer #sensor