## Technical Overview: CSTCG24M0V53-R0 The **CSTCG24M0V53-R0** is a miniature ceramic resonator with built-in load capacitors, manufactured by **Murata Electronics**. It belongs to the **CERALOCK®** product line, specifically the CSTCG series, which is designed for high-density surface mount applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Frequency** | 24.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% | | **Internal Capacitance** | 5 pF (Built-in) | | **Operating Temperature** | -20°C to +80°C | | **Package / Case** | 0805 (2.0mm x 1.25mm) | | **Mounting Type** | Surface Mount (SMD) | --- ### 2. Physical Structure and Pinout The device is a 3-terminal component. Unlike a standard 2-pin crystal, this part simplifies the PCB layout by integrating the necessary capacitors. 1. **Input/Output (Terminal 1 & 3):** Connected to the oscillator pins of the MCU. 2. **Ground (Terminal 2 - Middle):** Connected to the system ground. ### 3. Core Features * **Integrated Capacitors:** By building the load capacitors into the ceramic package, it eliminates the need for external capacitors, saving significant board space. * **Small Footprint:** The 2.0mm x 1.25mm size is ideal for compact consumer electronics. * **High Stability:** While not as precise as a quartz crystal, ceramic resonators offer much better stability than internal RC oscillators in microcontrollers. * **Fast Startup:** Ceramic resonators typically have a faster startup time compared to quartz crystals. --- ### 4. Common Applications This part is widely used in circuits where timing is important but absolute precision (like in high-speed networking) is not critical: * **Microcontrollers (MCUs):** Providing the clock source for 8-bit or 32-bit MCUs. * **USB Peripherals:** Often used in mouse, keyboard, or low-speed USB controllers. * **Consumer Electronics:** Remote controls, toys, and small home appliances. * **Portable Devices:** Audio players and handheld gadgets where space is a premium. --- ### 5. Implementation Example When designing a PCB with this part, the middle pin must be connected to a clean ground plane to ensure the internal capacitors function correctly. ```c // Typical Oscillator Configuration in Firmware // Frequency: 24 MHz // Type: External Resonator #define F_CPU 24000000UL ```