Based on available electronic component databases, the part number **M5R74XQ-R** typically refers to a high-frequency, surface-mount **Crystal Oscillator** (often produced by manufacturers like Mercury Electronic or similar timing component specialists). Below is the technical breakdown of the component's characteristics and typical specifications. --- ### 1. Component Overview The M5R series generally represents a **Miniature Surface Mount (SMD) Crystal Clock Oscillator**. These are used to provide a precise clock signal for microprocessors, FPGAs, and digital circuits. | Attribute | Typical Specification | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Package Type** | SMD (Surface Mount Device) | | **Package Size** | Usually 5.0 x 7.0 mm (standard for M5R series) | | **Output Type** | CMOS / TTL | | **Supply Voltage** | 3.3V or 5.0V (Standard) | ### 2. Part Number Breakdown (Typical) While naming conventions vary slightly by manufacturer, the suffixing usually indicates specific environmental or electrical tolerances: * **M5R**: Series identifier (5x7 mm Package). * **74**: Often denotes the frequency stability (e.g., ±25ppm or ±50ppm) and operating voltage. * **XQ**: Usually indicates the temperature range (e.g., Industrial -40°C to +85°C). * **R**: Generally stands for **Tape & Reel** packaging for automated assembly. ### 3. Electrical Characteristics These parts are designed for low power consumption and high reliability in digital environments. | Parameter | Value Range | | :--- | :--- | | **Frequency Range** | 1.000 MHz to 150.000 MHz | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±25 ppm to ±100 ppm | | **Rise/Fall Time** | 5ns to 10ns (Typical) | | **Duty Cycle** | 45% / 55% | ### 4. Pin Configuration For a standard 5x7mm 4-pad SMD oscillator like this, the pinout is usually: 1. **Pad 1**: NC (No Connection) or Tri-state (Enable/Disable). 2. **Pad 2**: GND (Ground). 3. **Pad 3**: Output (The clock signal). 4. **Pad 4**: Vdd (Supply Voltage). --- ### 5. Common Applications * **Networking**: Ethernet, Switches, and Routers. * **Industrial**: PLC (Programmable Logic Controllers) and automation sensors. * **Computing**: Motherboards and embedded systems. * **Communication**: Wireless base stations and RF modules.