## CSTCC2M00G53-R0: Component Overview The **CSTCC2M00G53-R0** is a ceramic resonator manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, which are components designed to provide a stable frequency for microprocessors and other integrated circuits, functioning similarly to a quartz crystal but with a smaller form factor and built-in capacitors. ### 1. Key Technical Specifications The following table outlines the primary electrical and physical characteristics of this part: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 2.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% | | **Built-in Capacitance** | 15 pF (Load Capacitance) | | **Mounting Type** | Surface Mount (SMD) | | **Package / Case** | 7.2mm x 3.0mm (3-Terminal) | | **Operating Temperature** | -20°C to +80°C | | **Resonance Resistance** | 80 $\Omega$ (Max) | --- ### 2. Functional Description The CSTCC2M00G53-R0 is a **three-terminal** device. The integration of capacitors is a significant feature: * **Piezoelectric Element:** The core is a ceramic material that vibrates at a specific frequency (2.00 MHz) when stimulated by an electric field. * **Built-in Load Capacitors:** Unlike standard two-pin crystals that require external capacitors to form an oscillation circuit, this part has two 15pF capacitors integrated internally. * **Space Saving:** Because the capacitors are internal, it saves PCB real estate and reduces the Bill of Materials (BOM) count. ### 3. Pin Configuration As a 3-terminal SMD device, the layout is typically as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | Input / Output | Connected to the oscillator circuit (OSC1/OSC2) | | 2 | Ground (GND) | Common ground for the internal capacitors | | 3 | Output / Input | Connected to the oscillator circuit (OSC2/OSC1) | --- ### 4. Applications and Use Cases Ceramic resonators are preferred over quartz crystals in applications where size and cost are more critical than extreme frequency precision (such as high-end timing or RF transmission). Common uses for the 2.00 MHz version include: 1. **Microcontroller Clocking:** Providing the system clock for 8-bit or 16-bit MCUs. 2. **Consumer Electronics:** Used in remote controls, toys, and small appliances. 3. **Communication:** Low-speed data communication interfaces where a ±0.5% tolerance is acceptable. 4. **Automotive Accessories:** Non-safety critical systems like window controls or dashboard displays (ensure the temp range meets specific automotive grade requirements if used there).