## Technical Overview: CSTCE13M0G55A-R0 The **CSTCE13M0G55A-R0** is a surface-mount (SMD) ceramic resonator produced by **Murata Electronics**. It belongs to the **CERALOCK®** family, which is widely used as a cost-effective alternative to quartz crystals for clock generation in microcontrollers and timing circuits. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Frequency** | 13.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Built-in Load Capacitance** | 33 pF | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 3.2 x 1.3 mm (1206 Case) | | **Frequency Stability** | ±0.3% over temperature | --- ### 2. Physical Structure and Pins This specific part is a **3-terminal device**. Unlike traditional crystals that require external capacitors, the CSTCE series integrates the load capacitors inside the package. * **Pin 1:** Input * **Pin 2:** Ground (GND) * **Pin 3:** Output --- ### 3. Core Advantages * **Space Saving:** Because it has built-in load capacitors, you do not need to place two external SMD capacitors on your PCB, saving roughly 50% of the circuit area. * **Cost-Effective:** Ceramic resonators are generally cheaper than quartz crystals. * **Stability:** While less precise than quartz (±0.5% vs. ±0.005%), it is more than sufficient for most microcontrollers (MCU) and USB (low speed) applications. * **Durability:** High resistance to mechanical vibration and shock. --- ### 4. Typical Application Circuit When connecting this part to a Microcontroller, the wiring is simplified: ```text Microcontroller +----------------+ | | | OSC_IN ---|---[Pin 1: CSTCE] | | | | OSC_OUT---|---[Pin 3: CSTCE] | | | +----------------+ [Pin 2: GND] ``` --- ### 5. Identification Code Breakdown * **CSTCE**: Product Series (Chip Type, Small Size). * **13M0**: Frequency (13.0 Megahertz). * **G**: Frequency Accuracy (G = ±0.5%). * **55**: Load Capacitance/Special Specs (55 = 33pF). * **A**: Individual Specification. * **-R0**: Packaging (Plastic Taping 3000pcs/reel).