18QHTF21-66.667-PD

Overview

The 18QHTF21-66.667-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 66.667 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby or power-down mode for energy management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.

Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Integrates standby functionality to reduce power consumption
• Provides LVCMOS output signal compatibility

Applications

• General clock generation for digital circuits
• Embedded systems requiring precise timing references
• Portable electronics utilizing low-power components

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to prevent assembly issues.

Selection Notes

Select this component when a 66.667 MHz reference is required with minimal power usage. The LVCMOS interface ensures compatibility with standard logic families. Consider the thermal performance and operating temperature range if the application involves extreme environmental conditions.

Part Context

Mercury Electronics Ind. Co. Ltd has been manufacturing frequency control products since 1973. As a pioneer in the quartz crystal industry in Taiwan, the company offers a wide range of oscillators. This model belongs to their standard XO series designed for reliable timing solutions.

Replacement Considerations

Check for direct substitutes from Mercury Electronics such as the 18QHTF21-67.000-PD for similar form factors. Verify pinout compatibility and electrical parameters before replacing with other manufacturers' parts.