## Overview of CSTCE8M00G55-R0 The **CSTCE8M00G55-R0** is a specific model of a **Ceramic Resonator** manufactured by Murata Electronics. It belongs to the **CERALOCK®** family, which is widely used in microcomputer peripheral circuits where a stable clock source is required. --- ### Key Technical Specifications | Parameter | Specification | |:---|:---| | **Frequency** | 8.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Operating Temperature Range** | -20°C to +80°C | | **Frequency Stability** | ±0.3% (over temp range) | | **Mounting Type** | Surface Mount (SMD) | | **Built-in Capacitance** | 33 pF (Internal Load Capacitors) | | **Package / Case** | 1206 (3213 Metric) - 3.2 x 1.3 mm | --- ### Detailed Component Features #### 1. Integrated Load Capacitors One of the primary features of this part is the **built-in load capacitors**. Unlike standard crystals that require two external capacitors to complete the oscillation circuit, this ceramic resonator integrates them into the package. * **Benefit:** Reduces the component count on the PCB and saves space. #### 2. CERALOCK® Technology Murata's CERALOCK technology utilizes the mechanical resonance of piezoelectric ceramics. While less precise than quartz crystals, ceramic resonators offer: * Faster start-up times. * Lower cost. * Smaller physical footprint. #### 3. 3-Terminal Configuration The device has three terminals: 1. **Input** (Connects to the MCU oscillator pin). 2. **Ground** (Common ground for internal capacitors). 3. **Output** (Connects to the second MCU oscillator pin). --- ### Typical Application Circuit In a standard microcontroller application, the resonator is connected directly to the `OSC_IN` and `OSC_OUT` pins without needing external passive components. ```c // Example representation of usage in a microcontroller system // The CSTCE8M00G55-R0 provides the system clock MCU_OSC_IN <---> [ Terminal 1: Resonator ] GND <---> [ Terminal 2: Ground ] MCU_OSC_OUT <---> [ Terminal 3: Resonator ] ``` --- ### Comparison: Ceramic Resonator vs. Quartz Crystal | Feature | Ceramic Resonator (CSTCE) | Quartz Crystal | |:---|:---|:---| | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Price** | Low | Higher | | **Start-up Time** | Very Fast | Slow | | **Size** | Very Small (integrated caps) | Larger (requires external caps) | ---