18QHTF21-20.3425-OE

Oscillators Overview

The 18QHTF21-20.3425-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 20.3425 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose timing circuits
• Embedded systems clock sources
• Digital signal processing interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operating conditions. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to ensure proper assembly and electrical connection.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside an enable/disable functionality for power efficiency. The LVCMOS output is appropriate for standard digital logic families. Consider the small form factor of the 4-SMD package if board space is limited. Verify that the 20.3425 MHz frequency aligns with the target application's clocking needs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequencies with LVCMOS outputs and enable features. Mercury Electronics is a established manufacturer of frequency control products, including quartz crystals and oscillators, with a long history in the industry.

Oscillators Replacement Considerations

Direct substitutes within the same series include other frequency variants such as 18QHTF21-65.300-OE or 18QHTF21-50.256-OE, provided the frequency difference is acceptable for the application. Cross-referencing with other manufacturers requires matching the package type, voltage, and output logic.