The **CSTCC3M84G53-R0** is a specific model of a **Ceramic Resonator** manufactured by **Murata Electronics**. It belongs to the CERALOCK® family, which is widely used as a timing component in microcontrollers and digital circuits. --- ### 1. Technical Specifications The part number encodes specific characteristics of the component. Below is a breakdown of its technical parameters: | Parameter | Specification | | :--- | :--- | | **Frequency** | 3.84 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temperature) | | **Operating Temperature** | -20°C to +80°C | | **Built-in Capacitance** | 15 pF (Internal load capacitors) | | **Package Type** | Surface Mount (SMD) | | **Package Dimensions** | 7.2 x 3.0 mm | --- ### 2. Key Features and Internal Structure Unlike a standard quartz crystal that requires external capacitors to form an oscillation circuit, the **CSTCC** series features **built-in load capacitors**. * **Internal Load Capacitors:** This reduces the total component count on the PCB and saves space. * **Oscillation Mechanism:** It uses the mechanical resonance of piezoelectric ceramics. * **Durability:** Ceramic resonators are generally more resistant to physical shock and vibration compared to quartz crystals. * **Cost-Effective:** They are typically cheaper than quartz crystals but offer slightly lower frequency precision. --- ### 3. Application Use Cases This specific frequency (3.84 MHz) and package are commonly found in: 1. **Microcontroller Clocks:** Providing the base clock signal for 8-bit or 16-bit MCUs. 2. **Consumer Electronics:** Remote controls, toys, and small appliances where extreme precision isn't required. 3. **Communication:** Low-speed data transfer protocols and interface timing. --- ### 4. Circuit Diagram Representation In a schematic, the CSTCC series is represented as a three-terminal device. ```text [ Microcontroller ] / \ OSC1 OSC2 | | +-----+--------------+-----+ | | Resonator | | | [In]----[ ]----[Out] | <-- CSTCC Device | | | +------------+-------------+ | [GND] ``` *The middle pin is always connected to Ground (GND) because it serves as the common point for the two internal 15pF capacitors.*