18QHTF21-44.490-OE

Oscillators Overview

The 18QHTF21-44.490-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 44.49 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, designed for surface-mount applications.

Oscillators Feature Summary

• Supports LVCMOS output signal compatibility
• Integrates enable and disable functionality
• Operates on a 1.8V power supply

Oscillators Applications

• Digital clock signal generation
• Microprocessor timing references
• Communication interface synchronization

Oscillators Procurement Notes

Verify the specific suffix against official Mercury Electronics documentation to confirm electrical characteristics and pinout configuration. Ensure the selected variant matches the required operating temperature range and load capacitance specifications for the target circuit design prior to procurement.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise frequency stability. The integrated enable pin allows for dynamic power control, making it suitable for battery-operated systems. Confirm that the 4-SMD package dimensions fit within the available PCB real estate constraints.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency solutions. The model number indicates the specific frequency and package type. It is distinct from programmable or switchable variants within the same manufacturer's portfolio.

Oscillators Replacement Considerations

Direct substitutes must match the 44.49 MHz frequency, 1.8V supply, and LVCMOS output. Verify pin compatibility and package dimensions before swapping. Cross-reference with other manufacturers offering similar SMD oscillators if availability is constrained.