The **CSTCC2M00G56Z-R0** is a ceramic resonator manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, designed to provide a stable clock source for microprocessors and other digital circuits. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 2.00 MHz | | **Frequency Tolerance** | ±0.5% | | **Built-in Capacitance** | 47 pF (Internal load caps) | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 7.2mm x 3.0mm (Lead-free) | | **Resonant Impedance** | 80 $\Omega$ (Max) | --- ### 2. Functional Characteristics #### Internal Structure Unlike standard crystals that require external load capacitors, the "CSTCC" series features **built-in load capacitors**. This reduces the component count on the PCB and saves board space. #### Material Composition It is made from **Piezoelectric Ceramics**. While crystals (Quartz) offer higher precision, ceramic resonators like this one offer: * Faster oscillation start-up time. * Lower cost. * Higher mechanical ruggedness. --- ### 3. Pin Configuration and Circuitry The device typically features **3 terminals**: 1. **Input:** Connected to the XTAL_IN of the MCU. 2. **Ground:** The center pin, connected to the system ground (GND). 3. **Output:** Connected to the XTAL_OUT of the MCU. ```mermaid graph LR MCU_In -- Resonator_Pin1 GND -- Resonator_Pin2_Center MCU_Out -- Resonator_Pin3 ``` --- ### 4. Common Applications * **Microcontrollers:** Serving as the main clock source for 8-bit or 16-bit MCUs. * **Consumer Electronics:** Remote controls, toys, and small appliances where extreme precision (like ±0.001%) is not required. * **Communication Equipment:** Low-speed data processing units. ---