18QHTF21-57.543667-OE

Overview

The 18QHTF21-57.543667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.543667 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Integrates enable/disable functionality for power management
• Provides stable LVCMOS clock signals
• Utilizes a leadless surface-mount package

Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded microcontroller clocks

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Ensure the 1.8V supply rail stability meets the component specifications to maintain signal integrity. Confirm the leadless package footprint matches the design layout to prevent assembly issues.

Selection Notes

Select this model when a 57.543667 MHz clock source with low-voltage operation is required. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the enable pin feature if system-level power conservation during idle states is a design priority.

Part Context

This component belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry, providing reliable oscillators for various electronic applications.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with compatible frequencies such as 18QHTF21-57.000-OE or 18QHTF21-57.600-OE, provided the frequency deviation is acceptable for the application.