18QHTF21-81.250-OE

Overview

The 18QHTF21-81.250-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 81.25 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes hardware enable/disable functionality for power management
• Utilizes a leadless surface-mount package design

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for embedded systems
• Digital communication interface synchronization

Procurement Notes

Verify the specific ordering suffix against official Mercury Electronic documentation to ensure correct voltage and package specifications. Confirm that the OE suffix aligns with the required enable pin configuration. Request manufacturer datasheets to validate electrical parameters before integration into production designs.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise timing needs. The small footprint suits space-constrained layouts. Ensure the host circuit supports LVCMOS levels and provides the necessary enable signal control for optimal power efficiency during idle states.

Part Context

This part belongs to the Mercury Electronic XO series, which specializes in quartz-based timing solutions. The manufacturer produces various oscillators including TCXOs and VCXOs. This specific model represents a standard fixed-frequency option within their portfolio of frequency control products.

Replacement Considerations

Direct substitutes must match the 81.25 MHz frequency, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics with alternative manufacturers before substitution.