### Technical Overview: CSTCE11M6G55-R0 The **CSTCE11M6G55-R0** is a specific type of ceramic resonator produced by **Murata Manufacturing**. It belongs to the **CERALOCK®** series, which are frequency-controlling components used as timing references in microcontrollers and other digital circuits. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 11.60 MHz | | **Frequency Tolerance** | ±0.5% | | **Resonant Impedance** | 50 $\Omega$ (Max) | | **Load Capacitance** | 33 pF (Built-in) | | **Operating Temperature** | -20°C to +80°C | | **Mounting Type** | Surface Mount (SMD) | | **Package Size** | 3.2 x 1.3 mm (CSTCE Series) | --- ### 2. Functional Components The "CSTCE" prefix indicates specific internal architecture features: 1. **Ceramic Element:** A piezoelectric ceramic disc that vibrates at a stable frequency when an alternating voltage is applied. 2. **Built-in Capacitors:** Unlike standard crystals that require external load capacitors on the PCB, this model includes two internal capacitors connected to the ground pin. This saves board space and simplifies the circuit design. 3. **Three-Terminal Design:** * **Input/Output Pins:** Connected to the oscillator circuit of the MCU. * **Ground Pin:** The center pin, which connects the internal load capacitors to the system ground. --- ### 3. Part Number Breakdown Understanding the Murata naming convention for this part: * **CSTCE:** Series name (SMD type with built-in capacitance). * **11M6:** The frequency value (11.60 Megahertz). * **G:** Frequency tolerance (G represents ±0.5%). * **55:** Code for specific load capacitance and individual specifications (in this case, 33pF). * **R0:** Packaging style (Plastic taping, 3,000 pcs/reel). --- ### 4. Application Circuit Example In a typical microcontroller setup, the resonator is connected to the `OSC_IN` and `OSC_OUT` pins. Because the capacitors are built-in, no external components are needed. ```c // Example Circuit Representation [MCU OSC_IN] ---- [Pin 1: CSTCE11M6] [System GND] ---- [Pin 2: CSTCE11M6 (Ground)] [MCU OSC_OUT]---- [Pin 3: CSTCE11M6] ``` --- ### 5. Ceramic Resonators vs. Quartz Crystals | Feature | Ceramic Resonator (CSTCE) | Quartz Crystal (XTAL) | | :--- | :--- | :--- | | **Cost** | Lower | Higher | | **Frequency Stability** | Moderate (±0.5%) | High (±10-50 ppm) | | **Start-up Time** | Very Fast | Slower | | **Integration** | Includes capacitors | Needs external capacitors | ---