18QHTF21-57.563667-OE

Overview

The 18QHTF21-57.563667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 57.563667 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Feature Summary

• LVCMOS output logic interface
• Enable/Disable control capability
• Compact 4-SMD No Lead package

Applications

• General clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 57.563667 MHz clock source is required with low-voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable/disable feature if power conservation or dynamic clock gating is necessary for the application environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This specific model represents a standard XO variant within their portfolio, distinct from differential oscillators or raw crystals.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies such as 18QHTF21-67.563-OE or 18QHTF21-8.300-OE, provided the frequency difference is acceptable. Cross-brand replacements must match the 1.8V supply, LVCMOS output, and 4-SMD No Lead package dimensions.