The **CSTCC3M00G56Z-R0** is a ceramic resonator manufactured by Murata Electronics. It belongs to the CERALOCK® family and is primarily used as a frequency-determining component in microcontrollers and timing circuits. --- ### 1. Key Technical Specifications The following table highlights the primary electrical and physical parameters of the component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 3.00 MHz | | **Frequency Tolerance** | ±0.5% | | **Built-in Capacitance** | 47 pF (Internal load capacitors) | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 7.2mm x 3.0mm | | **Frequency Aging** | ±0.3% (over 10 years) | --- ### 2. Physical Structure and Pinout The CSTCC series is a **three-terminal** device. Unlike standard two-pin crystals, this resonator integrates load capacitors internally, which simplifies the PCB design. * **Pin 1 (Input):** Connected to the XTAL input of the MCU. * **Pin 2 (Ground):** Connected to the common ground (this links the internal capacitors). * **Pin 3 (Output):** Connected to the XTAL output of the MCU. --- ### 3. Comparison: Ceramic Resonator vs. Quartz Crystal It is important to understand where this part sits in terms of performance compared to traditional quartz crystals: | Feature | Ceramic Resonator (CSTCC) | Quartz Crystal | | :--- | :--- | :--- | | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Cost** | Lower | Higher | | **Size** | Smaller (Built-in Caps) | Larger (Requires external Caps) | | **Start-up Time** | Very Fast | Slower | | **Stability** | Sensitive to Temp/Aging | Very Stable | --- ### 4. Common Applications Due to its 3.00 MHz frequency and integrated capacitors, this part is ideal for: * **Microcontrollers:** Providing a clock source for 8-bit or 16-bit MCUs where high precision (like USB or Ethernet timing) is not required. * **Consumer Electronics:** Remote controls, toys, and small appliances. * **Automotive/Industrial:** Non-critical timing for sensors or simple logic controllers. --- ### 5. Circuit Implementation To use this part, no external capacitors are required. The schematic symbol typically looks like this: ```text [ MCU ] / \ OSC1 OSC2 | | (1)-------(3) | (2) | [ GND ] ```