18QHTF21-43.000-OE

Oscillators Overview

The 18QHTF21-43.000-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 43 MHz and utilizes LVCMOS output logic levels. 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 applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface compatible with standard digital logic families
• Integrated enable/disable pin for active power control
• Compact 4-pin surface-mount form factor

Oscillators Applications

• General-purpose clock generation for embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific operating voltage and load capacitance requirements against your circuit design before procurement. Ensure the 4-SMD no-lead package footprint matches your PCB layout. Confirm that the LVCMOS output swing is compatible with the input thresholds of the receiving component to guarantee signal integrity.

Oscillators Selection Notes

Select this component when a 43 MHz clock source is required with low-voltage operation. The enable feature makes it suitable for battery-powered or power-sensitive designs. Consider the 1.8V supply constraint and ensure the application environment does not exceed the specified temperature range for stable oscillation.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides quartz-based timing solutions. The 'OE' suffix typically denotes an enable pin configuration. The 18QHTF21 series offers various frequencies and voltages, serving as a reliable alternative to other standard crystal oscillators in consumer and industrial electronics.

Oscillators Replacement Considerations

Direct replacements must match the 43 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify that substitute parts from other manufacturers support the same enable functionality and have compatible pin assignments to avoid redesign efforts.