### Overview of CSTCC3M64G56-R0 The **CSTCC3M64G56-R0** is a specific model of a **Ceramic Resonator** manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, which is widely used for clock oscillation in microprocessors and other digital circuits. --- ### Technical Specifications | Feature | Specification | | :--- | :--- | | **Nominal Frequency** | 3.64 MHz | | **Frequency Tolerance** | ±0.5% | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Built-in Capacitance** | Yes (Typically 15pF to 47pF per pin) | | **Package / Case** | 7234 (metric) / 2.8mm x 7.2mm | | **Resonance Resistance** | Max 50-100 Ω (varies by load) | --- ### Key Features and Construction 1. **Built-in Load Capacitors:** One of the primary advantages of this part (the "C" in the prefix) is that it includes built-in load capacitors. This eliminates the need for external capacitors on the PCB, saving space and reducing component count. 2. **Piezoelectric Technology:** It utilizes the mechanical resonance of piezoelectric ceramics. While less precise than quartz crystals, ceramic resonators are more robust, smaller, and significantly cheaper. 3. **Stability:** The part is designed for "General Purpose" use. While it is stable enough for most microcontrollers (MCUs), it is not recommended for high-precision timing applications like real-time clocks (RTC) or high-speed USB communication. --- ### Terminal Configuration The device typically features three terminals: * **Input Pin:** Connected to the oscillator input of the MCU. * **Ground Pin:** The center pin, connected to the system ground. * **Output Pin:** Connected to the oscillator output of the MCU. --- ### Comparison: Ceramic Resonator vs. Quartz Crystal | Characteristic | Ceramic Resonator (CSTCC) | Quartz Crystal | | :--- | :--- | :--- | | **Cost** | Lower | Higher | | **Size** | Smaller (SMD) | Larger | | **Frequency Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Start-up Time** | Very Fast | Slower | | **Ruggedness** | High (Vibration resistant) | Fragile | --- ### Typical Applications * Remote controls for home appliances. * Microprocessor clocks in toys and low-cost electronics. * Automotive body control modules (non-safety critical). * General-purpose embedded systems where tight timing (like Ethernet) is not required.