18QHTF21-20.9715-OE

Oscillators Overview

The 18QHTF21-20.9715-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 20.9715 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Oscillators Feature Summary

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

Oscillators Applications

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

Oscillators 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 4-SMD package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a precise 20.9715 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable pin feature if power management or clock gating is necessary within the application design constraints.

Oscillators Part Context

This part belongs to the Mercury Electronics standard XO series, designed for reliable frequency control. The manufacturer has extensive experience in quartz crystal production. The model number indicates the specific frequency and package type within their broader oscillator product line.

Oscillators Replacement Considerations

Direct substitutes must match the 20.9715 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify electrical parameters such as phase noise and jitter against original specifications to ensure functional equivalence in the final application.