The **CSTCC2M00G56A-R0** is a specific surface-mount (SMD) ceramic resonator manufactured by **Murata Electronics**. It belongs to the CERALOCK® family and is primarily used for clock generation in microcontrollers and other digital circuits. --- ## 1. Technical Specifications The following table highlights the core electrical and physical parameters of the component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 2.00 MHz | | **Frequency Tolerance** | ±0.5% | | **Operating Temperature** | -20°C to +80°C | | **Load Capacitance** | 47 pF (Built-in) | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 7.2mm x 3.0mm (Approx.) | | **Series** | CSTCC | --- ## 2. Key Components & Architecture This device is not just a simple vibrating element; it is an integrated timing solution. ### A. Piezoelectric Ceramic The heart of the component is a piezoelectric ceramic material. When an electrical signal is applied, it vibrates mechanically at a fixed frequency (2.00 MHz). ### B. Built-in Load Capacitors Unlike traditional quartz crystals that require external capacitors (C1 and C2) to form an oscillation circuit, the **CSTCC** series has these capacitors integrated into the package. * **Benefit:** Reduces PCB space. * **Benefit:** Simplifies circuit design and lowers the overall Bill of Materials (BOM) cost. ### C. Three-Terminal Design The part typically features three pads: 1. **Input:** Connected to the oscillator inverter input of the MCU. 2. **Ground:** Connected to the system ground. 3. **Output:** Connected to the oscillator inverter output of the MCU. --- ## 3. Applications The CSTCC2M00G56A-R0 is commonly used in applications where high precision (like that of a high-end crystal) is not required, but cost and space are critical: * **Microcontrollers:** Serving as the system clock for 8-bit or 16-bit MCUs. * **Consumer Electronics:** Remote controls, toys, and small appliances. * **Communication:** Low-speed data processing units. --- ## 4. Advantages vs. Disadvantages | Feature | Ceramic Resonator (CSTCC) | Quartz Crystal | | :--- | :--- | :--- | | **Cost** | Generally lower | Higher | | **Size** | Smaller (built-in caps) | Larger (needs external caps) | | **Startup Time** | Very Fast | Slower | | **Accuracy** | Moderate (±0.5%) | Very High (ppm level) |