## Technical Overview of CSTCE8M00G52-R0 The **CSTCE8M00G52-R0** is a ceramic resonator manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, which are high-reliability surface-mount (SMD) components used primarily for clock generation in microcontrollers and timing circuits. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 8.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.2% | | **Built-in Capacitance** | 10 pF (per side) | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 3.2 x 1.3 mm (1205 size) | | **Operating Temperature** | -20°C to +80°C | | **Product Series** | CSTCE_G (Small-cap type) | --- ### 2. Physical Construction and Pins Unlike simple two-pin quartz crystals, the CSTCE8M00G52-R0 is a **three-terminal** device because it includes **built-in load capacitors**. 1. **Input (Pin 1):** Connected to the OSC_IN of the MCU. 2. **Ground (Pin 2):** Center pin, connected to the system ground. 3. **Output (Pin 3):** Connected to the OSC_OUT of the MCU. --- ### 3. Functional Features * **Integrated Capacitors:** By integrating two 10pF capacitors inside the package, it saves PCB space and reduces the Bill of Materials (BOM) count. * **Cost-Effective:** Ceramic resonators are generally cheaper than quartz crystals. * **Fast Start-up:** They typically reach stable oscillation faster than traditional crystals. * **Mechanical Strength:** High resistance to vibration and physical shock compared to glass-sealed crystals. --- ### 4. Typical Application Circuit The resonator is used in an inverter-based Pierce oscillator circuit found inside most microcontrollers. ```text MCU / IC ____________________ | | | OSC1 OSC2 | |____|_________|_____| | | [Pin1] [Pin3] |-------------| | Resonator | |____[Pin2]___| | GND ``` --- ### 5. Comparison: Ceramic Resonator vs. Quartz Crystal | Feature | Ceramic Resonator | Quartz Crystal | | :--- | :--- | :--- | | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Cost** | Low | High | | **Size** | Small (Built-in caps) | Larger (Requires external caps) | | **Typical Use** | USB, Microcontrollers, Toys | High-speed RF, Precise Clocks |