The **CSTCE14M3V53-R0** is a miniature surface-mount (SMD) ceramic resonator developed by **Murata Manufacturing Co., Ltd.** It belongs to the CERALOCK® family, which is widely used as a cost-effective alternative to quartz crystals for providing a stable clock signal to microcontrollers and processors. --- ## 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 14.318 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temperature range) | | **Operating Temperature** | -20°C to +80°C | | **Internal Capacitance** | 15 pF (Built-in load capacitors) | | **Package Size** | 3.2 x 1.3 mm (SMD 3213) | | **Resonant Impedance** | 40 $\Omega$ (Max) | --- ## 2. Key Features * **Built-in Load Capacitors:** Unlike standard quartz crystals, this ceramic resonator includes internal load capacitors. This eliminates the need for two external capacitors, saving PCB space and reducing the Bill of Materials (BOM) cost. * **Small Form Factor:** The "CSTCE" series is designed for high-density mounting in compact consumer electronics. * **High Reliability:** Ceramic resonators are generally more resistant to mechanical shock and vibration compared to glass-sealed crystals. * **Fast Start-up:** These devices typically reach stable oscillation faster than quartz equivalents. --- ## 3. Pin Configuration and Circuitry The device features 3 terminals, usually laid out as follows: 1. **Input (Pin 1):** Connected to the XTAL_IN of the MCU. 2. **Ground (Pin 2):** Center pin, connected to the system ground. 3. **Output (Pin 3):** Connected to the XTAL_OUT of the MCU. ### Typical Application Diagram ```text MCU / IC +-----------+ | XTAL1 |--------[ Pin 1 ] | | | | GND |--------[ Pin 2 (GND) ] | | | | XTAL2 |--------[ Pin 3 ] +-----------+ CSTCE Resonator ``` --- ## 4. Common Applications Due to its specific frequency of **14.318 MHz** (a common frequency for video systems and legacy PC clocks), it is frequently found in: * **AV Equipment:** DVD players, digital cameras, and camcorders. * **Computing:** Clock generation for motherboard chipsets or legacy ISA bus peripherals. * **Embedded Systems:** General-purpose microcontrollers (ATMega, PIC, etc.) where a ±0.5% tolerance is acceptable.