18QHTF21-20.900-PD

Oscillators Overview

The 18QHTF21-20.900-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 20.9 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface mount applications.

Oscillators Feature Summary

• Supports LVCMOS output interface
• Includes standby power-down capability
• Compact 4-SMD no lead package design

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators 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 footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Oscillators Selection Notes

Choose this component when a low-voltage 1.8V operation is required alongside a precise 20.9 MHz reference. The LVCMOS output ensures compatibility with standard digital logic families. Consider the power-down feature if system energy efficiency during idle states is a priority for the application design.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides stable frequency control solutions. The manufacturer has extensive experience in quartz crystal production. This specific model represents a standard oscillator variant designed for reliable performance in various electronic devices requiring precise timing signals.

Oscillators Replacement Considerations

Direct substitutes must match the 20.9 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics before swapping manufacturers.