18QHTF21-67.584-OE

Overview

The 18QHTF21-67.584-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 67.584 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes an active-low enable/disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals within space-constrained electronic systems.

Feature Summary

• Integrates LVCMOS output interface for direct digital logic compatibility
• Features an enable/disable control pin to manage power consumption states
• Utilizes a leadless surface-mount package for automated assembly integration

Applications

• Portable consumer electronics requiring low-power clock sources
• Embedded systems utilizing LVCMOS-compatible processors
• Communication modules needing stable frequency references

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 PCB footprint matches the 2.0x1.6mm SMD no-lead package dimensions to prevent soldering issues during assembly.

Selection Notes

Select this model when a fixed 67.584 MHz frequency is required with LVCMOS outputs. Consider the 1.8V operating voltage constraint for compatibility with modern low-voltage logic families. Evaluate the need for the enable pin feature if dynamic power saving is critical for the target application environment.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, characterized by small form factors and low voltage operation. The series typically offers various frequency options within a standardized package outline. It serves as a timing reference component for digital circuits requiring stable clock signals without the complexity of programmable oscillators.

Replacement Considerations

Direct substitutes include other 67.584 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers such as Epson or SiTime. Verify pinout compatibility and electrical specifications before swapping. Alternative part numbers like 18QHTF21-68.084-OE share the same package but differ in frequency.