18QHTF21-68.736-OE

Overview

The 18QHTF21-68.736-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 68.736 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications. The component supports an operating temperature range from -40°C to 85°C and maintains a frequency stability of ±50ppm.

Feature Summary

• Integrates enable and disable control capabilities for efficient power management within electronic circuits.
• Delivers LVCMOS output signals compatible with standard digital logic interfaces.

Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for digital communication interfaces
• Clock distribution in consumer electronics hardware

Procurement Notes

Verify the specific suffix OE against the manufacturer's official documentation to confirm pinout compatibility and electrical specifications. Ensure that the required 1.8V supply voltage aligns with the target system design constraints before integration. Cross-reference the operating temperature range with the environmental conditions of the intended application to guarantee reliable performance under all expected operational scenarios.

Selection Notes

Select this component when a precise 68.736 MHz timing source is required for low-voltage digital circuits. The LVCMOS output interface ensures direct compatibility with standard microcontrollers and FPGA inputs without additional level shifting. Consider the enable/disable feature if dynamic power saving is necessary during idle periods in battery-operated devices.

Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators produced by Mercury Electronic. The series typically offers various frequency options within a standardized small footprint. The manufacturer specializes in quartz crystal frequency control products, providing stable timing solutions for industrial and commercial electronic applications requiring reliable clock sources.

Replacement Considerations

Consult official substitution lists for equivalent models with matching frequency and package dimensions. Verify that alternative components support the same 1.8V supply voltage and LVCMOS output logic levels to ensure circuit compatibility without redesigning the PCB layout or power supply network.