18QHTF21-23.552-PD

Oscillators Overview

The 18QHTF21-23.552-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 23.552 MHz. It utilizes LVCMOS output logic and supports a supply voltage range typical for low-voltage applications, with specific variants noted at 1.8V. The device features a power-down standby function to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Integrates LVCMOS output interface for digital signal compatibility
• Includes power-down standby capability for energy management
• Utilizes a leadless SMD package for automated surface-mount processing

Oscillators Applications

• General clock generation for embedded systems
• Timing reference for data communication interfaces
• Clock source for microcontroller units

Oscillators Procurement Notes

Verify the exact supply voltage rating and load capacitance requirements against the target circuit design before procurement. Confirm that the 4-SMD no-lead package dimensions align with the PCB footprint specifications. Ensure the selected variant matches the required operating temperature range for the intended application environment.

Oscillators Selection Notes

Select this component based on the precise 23.552 MHz frequency requirement and LVCMOS logic level compatibility. Evaluate the trade-off between the low-profile SMD form factor and thermal dissipation needs. Consider the power-down feature if system-level energy efficiency during idle states is a critical design parameter.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of standard oscillators. The series offers various frequencies and voltage options within a consistent small-footprint package family, allowing designers to maintain uniform board layouts across different timing requirements while leveraging established manufacturing processes.

Oscillators Replacement Considerations

Direct substitutes must match the 23.552 MHz frequency, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as drive strength and rise/fall times. Cross-reference with other manufacturers offering equivalent surface-mount XO components.