The **MHO+67TCD-R** is a specific model within the series of high-precision **Crystal Oscillators**, typically manufactured by companies like MtronPTI. These components are critical in electronics for providing stable clock signals. --- ### 1. Part Number Breakdown The part number follows a specific nomenclature that defines its electronic characteristics: | Code Segment | Description | | :--- | :--- | | **MHO** | **Series Name:** Usually indicates a 14-pin DIP (Dual In-line Package) compatible metal header. | | **+** | **RoHS Compliant:** Indicates the part is lead-free and meets environmental standards. | | **6** | **Operating Voltage:** Typically represents 3.3V DC (though this can vary by manufacturer code). | | **7** | **Stability/Temperature:** Defines the frequency stability (e.g., ±25ppm or ±50ppm) over a specific range. | | **TCD** | **Output Type & Configuration:** Often stands for **CMOS/TTL** compatible output with Tri-state functionality. | | **R** | **Packaging:** Usually denotes "Tape and Reel" or a specific Revision code. | --- ### 2. Key Technical Specifications Based on the standard parameters for the MHO series, here are the electronic specifications: * **Frequency Range:** Can range from 1.000 MHz to 150.000 MHz (customer specified). * **Supply Voltage ($V_{DD}$):** Typically 3.3V or 5.0V depending on the exact digit code. * **Output Logic:** CMOS/TTL. This means it can drive standard digital logic gates directly. * **Tri-state Function (Pin 1):** * When Pin 1 is High (or floating), the oscillation is active. * When Pin 1 is Low, the output goes into a high-impedance state, reducing power consumption. * **Operating Temperature:** Generally -40°C to +85°C (Industrial Grade). --- ### 3. Pin Configuration (14-Pin DIP Style) Even though it is a 4-terminal active device, it often fits into a 14-pin footprint for stability: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | **INH / Tri-state** | Control pin to enable/disable the output. | | **7** | **Case Ground** | Connects to the system ground and the metal casing for EMI shielding. | | **8** | **Output** | The generated square wave clock signal. | | **14** | **$V_{DD}$** | Positive power supply input. | --- ### 4. Typical Applications * **Microprocessors:** Providing the base clock for CPUs and MCUs. * **Networking:** Timing for Ethernet controllers and routers. * **Industrial Control:** Precise timing for PLC (Programmable Logic Controllers). * **Embedded Systems:** General-purpose clocking where low jitter is required. ---