## CSTCC2M00G56-R0: Component Overview The **CSTCC2M00G56-R0** is a ceramic resonator manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, designed to provide a stable clock signal for microprocessors and other digital circuits. ### 1. Key Specifications | Parameter | Specification | | :--- | :--- | | **Frequency** | 2.00 MHz | | **Frequency Tolerance** | ±0.5% | | **Built-in Load Capacitance** | 47 pF (Internal) | | **Resonant Impedance** | 80 $\Omega$ (Max) | | **Temperature Range** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Dimensions** | 7.2mm x 3.0mm x 1.6mm | --- ### 2. Technical Features and Functionality The CSTCC series is distinguished by several technical characteristics that influence its performance in electronic circuits: * **Integrated Capacitors:** Unlike standard crystals that require external load capacitors ($C_1$ and $C_2$), the CSTCC2M00G56-R0 features **built-in load capacitance**. This reduces the component count on the PCB and saves space. * **Piezoelectric Effect:** It utilizes the mechanical vibration of a ceramic element. When an electrical signal is applied, the ceramic vibrates at its resonant frequency (2.00 MHz), creating a stable timing reference. * **Physical Durability:** Ceramic resonators are generally more resistant to physical shock and vibration compared to quartz crystals, though they have slightly higher frequency tolerances. --- ### 3. Pin Configuration and Internal Circuitry The device typically has **3 terminals**: 1. **Input (1):** Connected to the oscillator input of the IC. 2. **Ground (2):** The center pin, connected to the system ground. 3. **Output (3):** Connected to the oscillator output of the IC. ```mermaid graph LR A[Input] --- B((Resonator)) B --- C[Output] A --- D[Internal Cap] C --- E[Internal Cap] D --- F[Ground] E --- F ``` --- ### 4. Applications This component is commonly found in cost-sensitive applications where extreme precision (like high-speed communication) is not as critical as durability and size: * **Microcontrollers (MCUs):** Providing the system clock for 8-bit or 16-bit processors. * **Consumer Electronics:** Remote controls, toys, and small appliances. * **Automotive:** Non-safety critical systems like body control modules or dashboard displays.