## Technical Overview: CSTCC3M58G56A-R0 The **CSTCC3M58G56A-R0** is a specific model of a **Ceramic Resonator** manufactured by Murata Electronics. These components are used to provide a stable clock signal or frequency reference for microcontrollers and other integrated circuits. ### 1. Key Specifications The following table summarizes the primary electrical characteristics of this part: | Parameter | Value / Specification | | :--- | :--- | | **Component Type** | Ceramic Resonator (CSTCC Series) | | **Nominal Frequency** | 3.58 MHz | | **Frequency Tolerance** | ±0.5% | | **Resonant Impedance** | 30 $\Omega$ (Max) | | **Built-in Load Capacitance** | 47 pF (Typical) | | **Temperature Range** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Packaging** | Tape and Reel (R0 suffix) | --- ### 2. Functional Description Ceramic resonators like the CSTCC series utilize the mechanical vibration of piezoelectric ceramics to generate a specific frequency. * **Internal Capacitors:** The "G" in the part number indicates that this unit includes **built-in load capacitors**. This simplifies circuit design because you do not need to add external capacitors to the oscillation circuit, saving PCB space. * **3.58 MHz Significance:** This specific frequency is widely used in telecommunications and video systems (historically related to the NTSC color subcarrier frequency). * **Stability:** While more stable than a simple RC circuit, it is less precise than a Quartz Crystal. However, it is cheaper, smaller, and starts up faster. --- ### 3. Pinout and Circuit Integration The device typically features three terminals (pads): 1. **Input:** Connected to the oscillator inverter input of the MCU. 2. **Ground:** The center pin is connected to the system ground (necessary for the built-in capacitors). 3. **Output:** Connected to the oscillator inverter output of the MCU. --- ### 4. Comparison: Resonator vs. Crystal | Feature | Ceramic Resonator (CSTCC) | Quartz Crystal | | :--- | :--- | :--- | | **Cost** | Low | Higher | | **Accuracy** | Moderate (0.1% to 0.5%) | Very High (ppm range) | | **Start-up Time** | Very Fast | Slower | | **Size** | Very Small (Built-in Caps) | Requires external Caps |