The **CSTCG22M5V53-R0** is a specific electronic component manufactured by **Murata Electronics**. It belongs to the **CERALOCK®** family, which are ceramic resonators used to provide a stable clock signal for microcontrollers and other digital circuits. --- ## 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of the device: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 22.500 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temp range) | | **Operating Temperature** | -20°C to +80°C | | **Built-in Load Capacitance** | 5 pF (Internal) | | **Package Type** | SMD (Surface Mount Device) | | **Dimensions** | 2.0 x 1.3 mm | --- ## 2. Key Features * **Built-in Capacitors:** Unlike quartz crystals that often require external load capacitors ($C_1$ and $C_2$), the CSTCG series integrates these capacitors internally. This saves PCB space and reduces component count. * **Small Footprint:** Its 2013 (metric) size makes it ideal for high-density circuit boards in portable electronics. * **Cost-Effective:** Ceramic resonators are generally less expensive than quartz crystals, though they offer slightly less frequency precision. * **Fast Start-up:** These resonators typically reach stable oscillation faster than traditional crystal oscillators. --- ## 3. Pinout and Circuit Application The device typically features three terminals: 1. **Input:** Connected to the OSC_IN of the MCU. 2. **Ground (GND):** The center pin, connected to the system ground. 3. **Output:** Connected to the OSC_OUT of the MCU. ### Typical Application Diagram ```mermaid graph LR MCU[Microcontroller] ---|OSC_IN| R[CSTCG Resonator] MCU ---|OSC_OUT| R R ---|Center Pin| GND[Ground] ``` --- ## 4. Common Use Cases * **Microcontrollers:** Serving as the main system clock for 8-bit or 32-bit MCUs where extreme precision (like for high-speed USB or Ethernet) is not required. * **Consumer Electronics:** Remote colors, home appliances, and toys. * **Communication Equipment:** Local oscillators in low-speed data transmission modules.