The **MHO+67TCG-R** is a specific part number belonging to a series of high-precision crystal oscillators, typically manufactured by companies like **Mercury Electronic**. These components are essential in digital circuits for providing a stable clock signal. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its physical and electrical characteristics. Below is a breakdown of the standard specifications for this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Package Type** | DIL-14 (Full Size) or DIL-8 (Half Size) Metal Can | | **Mounting Type** | Through-Hole | | **Output Type** | CMOS / TTL | | **Supply Voltage ($V_{DD}$)** | Usually 5.0V or 3.3V | | **Frequency Stability** | ±25ppm to ±100ppm | | **Operating Temperature** | -10°C to +70°C (Standard) | | **RoHS Status** | Compliant (indicated by the 'R' suffix) | --- ### 2. Pin Configuration (DIL-14 Style) These oscillators usually come in a 4-pin configuration within a 14-pin rectangular footprint. 1. **Pin 1 (NC or E/D):** No Connection or Tri-state Enable/Disable control. 2. **Pin 7 (GND):** Connected to the system ground and the metal case for EMI shielding. 3. **Pin 8 (Output):** The generated square wave frequency output. 4. **Pin 14 ($V_{CC}$):** Positive power supply input. --- ### 3. Key Features * **Metal Package:** The hermetically sealed metal "can" provides excellent protection against electromagnetic interference (EMI). * **Integrated Design:** Unlike a simple crystal, this "oscillator" includes the crystal and the necessary oscillation circuitry (capacitors/transistors) inside the package. * **Plug-and-Play:** It requires only a DC power source to generate a stable square wave, eliminating the need for external load capacitors on the PCB. --- ### 4. Applications The MHO+ series is commonly found in legacy and industrial hardware including: * **Microprocessor Clocks:** Providing the heartbeat for CPUs. * **Networking Equipment:** Synchronizing data transmission in switches or routers. * **Industrial Controllers:** Used in PLCs where through-hole durability is preferred over SMD. * **Test & Measurement:** Oscilloscopes and signal generators.