18QHTF21-65.767-OE

Overview

The 18QHTF21-65.767-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 65.767 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a stable 65.767 MHz reference is required for low-voltage digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. Consider the enable pin feature if power management or clock gating is necessary within the system architecture to optimize energy consumption during idle states.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal and oscillator products. The manufacturer has decades of experience in frequency control solutions. This specific model represents a standard XO variant, distinct from temperature-compensated or voltage-controlled oscillator types within the broader product portfolio.

Replacement Considerations

Direct substitutes must match the 65.767 MHz frequency, 1.8V operation, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as phase noise and jitter before swapping manufacturers.