18QHTF21-21.3125-OE

Oscillators Overview

The 18QHTF21-21.3125-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 21.3125 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features integrated enable/disable control functionality for power efficiency
• Utilizes a leadless SMD package design for automated surface-mount processing

Oscillators Applications

• General purpose clock signal generation in electronic circuits
• Timing reference sources for digital communication interfaces
• Clock distribution in consumer electronics hardware

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the host board's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper solder joint formation during assembly.

Oscillators Selection Notes

Select this component when a precise 21.3125 MHz timing source is required with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the enable pin feature if dynamic power management is necessary for the application environment.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics XO series, which provides standard frequency solutions. The model number indicates the specific frequency variant within the 18QHTF21 family. These components are designed to replace discrete crystal and resonator combinations with a single integrated solution.

Oscillators Replacement Considerations

Direct substitutes include other 21.3125 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical specifications before substitution.