The **MHO+12TBD-R** is a specific series of high-frequency crystal oscillators, typically manufactured by companies like **MtronPTI**. These components are essential for providing a stable clock signal in digital circuits. ### 1. Component Identification The part number can be broken down into specific technical parameters: | Code Segment | Description | | :--- | :--- | | **MHO+** | Indicates the product series (High-reliability, high-frequency HCMOS/TTL). | | **1** | Typically denotes the supply voltage (e.g., 5.0V). | | **2** | Denotes the frequency stability (e.g., ±50ppm or ±100ppm depending on the specific datasheet revision). | | **TBD** | Often represents a placeholder for custom frequency or specific packaging configurations. | | **R** | Indicates compliance with **RoHS** (Reduction of Hazardous Substances) standards. | --- ### 2. Technical Specifications While the exact frequency is determined by the "TBD" segment, the general characteristics of the MHO series are as follows: * **Output Type:** HCMOS/TTL compatible. This means it can drive standard digital logic circuits. * **Package Type:** 14-pin DIP (Dual In-line Package) or 4-pin "Half-size" DIP. These are through-hole components used on PCBs. * **Operating Voltage:** Usually **5.0V DC** (±10%). * **Frequency Range:** Can range from **1.0 MHz to 150.0 MHz**. * **Duty Cycle:** Standard 40/60% or 45/55%. --- ### 3. Pinout Configuration For the standard 4-pin half-size or 14-pin full-size metal package, the pin functions are usually defined as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N/C or Tri-state | No connection or Output Enable/Disable control. | | **7** | GND | Circuit Ground. | | **8** | Output | The generated clock signal (Square wave). | | **14** | Vcc | Positive Power Supply (+5V). | --- ### 4. Typical Applications These oscillators are used in environments requiring high reliability and stable timing: 1. **Industrial Controllers:** For synchronizing CPU operations. 2. **Communications:** Used in networking hardware for data packet timing. 3. **Legacy Computing:** Common in older motherboard designs or specialized embedded systems. 4. **Test Equipment:** Providing reference frequencies for signal generators. ---