## Technical Overview of CSTCE19M6V53-R0 The **CSTCE19M6V53-R0** is a ceramic resonator manufactured by **Murata Electronics**. It belongs to the **CERALOCK®** family, which are high-precision electronic components used to provide a stable clock signal for microprocessors and other integrated circuits. --- ### 1. Key Technical Specifications The following table highlights the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 19.6608 MHz | | **Frequency Tolerance** | ±0.5% | | **Frequency Stability** | ±0.3% (over temp range) | | **Built-in Capacitance** | 15 pF (Internal load capacitors) | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 3.2 x 1.3 mm (CSTCE Type) | --- ### 2. Functional Components The CSTCE series is unique because it is a **3-terminal** device. Unlike standard 2-pin crystals, it integrates the following: * **Ceramic Element:** The core piezoelectric material that vibrates at a specific frequency (19.66 MHz) when voltage is applied. * **Built-in Load Capacitors:** It contains two internal capacitors (15 pF) connected to the center ground pin. This eliminates the need for external load capacitors on your PCB, saving space and reducing BOM (Bill of Materials) costs. --- ### 3. Pin Configuration The device features three soldering pads on the bottom of the SMD package: | Pin Number | Function | Description | | :--- | :---: | :--- | | 1 | Input / Output | Connected to XTAL1 / Oscillation Input | | 2 | Ground (GND) | Connected to the circuit ground | | 3 | Output / Input | Connected to XTAL2 / Oscillation Output | --- ### 4. Circuit Implementation When designing a PCB with this part, the circuit is extremely simple. Because the capacitors are internal, you do not need to add the standard $C_1$ and $C_2$ components usually seen in crystal oscillator circuits. ```c // Typical Connection Diagram [MCU] |-- (XTAL1) ---- [Pin 1: Resonator] |-- (GND) ---- [Pin 2: Resonator] |-- (XTAL2) ---- [Pin 3: Resonator] ``` --- ### 5. Common Applications * **Microcontrollers:** Serving as the main system clock for MCUs. * **Automotive Electronics:** Used in body control modules and infotainment. * **Consumer Electronics:** High-speed USB peripherals and communication devices. * **Industrial:** Timing for PLC (Programmable Logic Controllers). ---