The **MHO+54TCD-R** is a specific series within the family of **Crystal Oscillators**, typically manufactured by companies like MtronPTI. These components are critical for providing a stable clock signal in electronic circuits. Below is a detailed breakdown of its electronic characteristics and specifications. --- ## 1. Component Overview The MHO series generally refers to **HCMOS/TTL compatible** crystal oscillators housed in a 14-pin (or 4-pin equivalent) Dual-In-line Package (DIP). ### Key Technical Specifications | Parameter | Typical Value / Description | |:---|:---| | **Package Type** | DIP-14 (Full size) or DIP-8 (Half size) | | **Output Type** | HCMOS / TTL | | **Supply Voltage (Vcc)** | +5.0V DC (Standard for the '5' series) | | **Temperature Stability** | Usually ±50ppm to ±100ppm | | **Frequency Range** | Typically 1.0 MHz to 100+ MHz (specific to order) | | **Operating Temperature** | 0°C to +70°C (Standard) or -40°C to +85°C (Industrial) | | **RoHS Status** | The **-R** suffix denotes RoHS Compliance | --- ## 2. Pin Configuration (Typical DIP-14) In these metal-can oscillators, only four pins are usually active despite the physical size of the package. | Pin Number | Function | Description | |:---:|:---:|:---| | 1 | N/C or E/D | No connection or Tri-state Enable/Disable | | 7 | GND | Circuit Ground and Case Ground | | 8 | Output | The generated clock signal (Square wave) | | 14 | Vcc | +5.0V Power Supply | --- ## 3. Deciphering the Part Number * **MHO**: Series identifier (Metal Thru-Hole Oscillator). * **+**: Often indicates a specific revision or environmental compliance enhancement. * **5**: Represents the **5.0 Volt** power supply requirement. * **4**: Often denotes the frequency stability (e.g., 4 = ±50ppm). * **T**: Indicates the Output Type (T = TTL/HCMOS Compatible). * **C**: Temperature Range (C = Commercial 0°C to 70°C). * **D**: Duty Cycle specification (D = 40/60% or 45/55% symmetry). * **-R**: **RoHS Compliant** (Lead-free). --- ## 4. Application Areas These oscillators are used in legacy and industrial hardware where high-reliability timing is required: * **Microprocessor Clocks:** Providing the heartbeat for CPUs. * **Data Communications:** Timing for serial interfaces. * **Embedded Systems:** Industrial controllers and automation. * **Legacy Computing:** Replacement parts for older PCB designs using through-hole technology. ---