18QHTF21-64.810-OE

Overview

The 18QHTF21-64.810-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 64.81 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 suitable for surface-mount applications.

Feature Summary

• Integrates enable and disable functionality for flexible power control
• Delivers LVCMOS output signals for digital interface compatibility
• Utilizes a compact 4-SMD no lead package design

Applications

• General electronics timing applications
• Low-voltage digital systems requiring precise clock signals
• Portable devices utilizing 1.8V power supplies

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics to guarantee signal integrity.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside an enable pin for power efficiency. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small form factor if space constraints are critical. Verify that the 64.81 MHz frequency meets the exact timing needs of the target application without requiring external dividers.

Part Context

This part belongs to the 18QHTF21 series from Mercury United Electronics, Inc., a supplier specializing in quartz crystals and oscillators. The series features low-voltage CMOS outputs with disable options. Mercury has been manufacturing frequency control products since 1973, establishing itself as a pioneer in the Taiwan crystal industry.

Replacement Considerations

Direct substitutes include other 64.81 MHz LVCMOS oscillators with 1.8V operation and enable pins. Compatible alternatives may include parts from the same family such as the 18QHTF53-64.810-OE, provided the package and electrical specifications match exactly.