The **CSTCV24M0X53Q-R0** is a specific electronic component manufactured by **Murata Electronics**. It belongs to the **CERALOCK®** family, which are ceramic resonators used as frequency-stable timing elements in electronic circuits. --- ## 1. Technical Specifications The following table outlines the primary electrical and physical characteristics of this part: | Parameter | Specification | | :--- | :--- | | **Nominal Frequency** | 24.000 MHz | | **Frequency Tolerance** | ±0.5% | | **Operating Temperature** | -40°C to +125°C | | **Frequency Stability** | ±0.3% over temperature | | **Load Capacitance** | Built-in (typically 15pF) | | **Package Type** | SMD (Surface Mount Device) | | **Package Dimensions** | 3.7mm x 3.1mm | | **Series** | CSTCV (Automotive Grade) | --- ## 2. Key Internal Components Unlike a simple two-terminal crystal, the CSTCV series integrates several functions into one package: * **Ceramic Substrate:** Made from high-Q piezoelectric ceramic material that vibrates at a specific frequency when voltage is applied. * **Built-in Load Capacitors:** This part features a "three-terminal" design. The center pin is grounded, and the two outer pins connect to the internal capacitors. This eliminates the need for external capacitors on your PCB, saving space. * **Automotive Grade Construction:** The "Q" in the part number often signifies compliance with AEC-Q200 standards, meaning it is designed to withstand high vibrations and extreme temperatures. --- ## 3. Comparison: Ceramic Resonator vs. Quartz Crystal It is important to understand where this part sits in the hierarchy of timing components: | Feature | Ceramic Resonator (CSTCV) | Quartz Crystal (XTAL) | | :--- | :--- | :--- | | **Accuracy** | Moderate (±0.5%) | High (±0.001%) | | **Start-up Time** | Very Fast | Slower | | **Cost** | Lower | Higher | | **Size** | Smaller (Internal caps) | Larger (External caps needed) | | **Best Use Case** | Microcontrollers, USB, CAN | High-speed RF, RTC, GPS | --- ## 4. Typical Application Circuit When using the CSTCV24M0X53Q-R0 with a microcontroller (MCU), the wiring is straightforward: ```text MCU Pins CSTCV24M0X53Q-R0 __________ _________________ | | | (1) (2) (3) | | OSC_IN |-----------|--[In] [Out]-| | | | [Gnd] | | OSC_OUT |-----------|----------|--------| |__________| | Ground ``` * **Pin 1 & 3:** Connected to the oscillator input/output of the IC. * **Pin 2 (Center):** Connected directly to the system ground.