18QHTF21-66.08856-OE

Overview

The 18QHTF21-66.08856-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 66.08856 MHz and utilizes LVCMOS output logic. The device functions with a 1.8V supply voltage and includes enable/disable control capabilities. It is housed in a compact 4-SMD, no lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

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

Applications

• General clock signal generation
• Digital system timing references
• Embedded controller synchronization

Procurement Notes

Verify the exact frequency specification of 66.08856 MHz against project requirements. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the LVCMOS output logic level is compatible with the receiving components. Check the 4-SMD no lead package dimensions for PCB footprint accuracy. Validate the enable/disable pin configuration if power control is utilized in the application.

Selection Notes

Select this component when a stable 66.08856 MHz reference is required for low-voltage digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. The integrated enable feature supports systems requiring dynamic power state management. The small form factor suits space-constrained designs where minimal board area is critical.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard oscillators for various frequency needs. The 18QHTF21 series specifically targets applications requiring reliable timing sources in compact packages. Similar models in this family offer different frequencies while maintaining consistent electrical characteristics and package types.

Replacement Considerations

Direct substitutes must match the 66.08856 MHz frequency, 1.8V operation, and LVCMOS output. Verify package compatibility for the 4-SMD no lead footprint. Cross-reference with other Mercury Electronics parts offering identical specifications if availability is an issue.