18QHTF21-49.3367-OE

Overview

The 18QHTF21-49.3367-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 49.3367 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an enable/disable control pin, allowing for power management through active and inactive states. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features an enable/disable function for power efficiency control
• Operates with a 1.8V supply voltage requirement

Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded system clock inputs

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's specifications to ensure reliable frequency performance. Ensure the PCB layout accommodates the 4-SMD No Lead package dimensions correctly.

Selection Notes

Select this component when a 49.3367 MHz timing source is required with low-power capabilities. The enable/disable feature makes it suitable for battery-operated or power-sensitive designs. Ensure the host circuit supports LVCMOS logic levels and provides a stable 1.8V supply. Verify that the physical footprint matches the 4-SMD No Lead package constraints.

Part Context

This part belongs to the Mercury Electronics XO series, which includes various frequencies such as 50.3367 MHz and 117.675 MHz within the same 18QHTF21 form factor. These oscillators share common packaging and electrical characteristics like LVCMOS outputs and enable functions, differing primarily in their specified operating frequencies.

Replacement Considerations

Direct substitutes include other 49.3367 MHz LVCMOS oscillators in the 4-SMD No Lead package from compatible manufacturers. Ensure replacement parts match the 1.8V supply voltage and enable/disable pin configuration to maintain circuit functionality without redesign.