18QHTF21-13.5546-OE

Overview

The 18QHTF21-13.5546-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.5546 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control capability
• Surface-mount 4-SMD no lead package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

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. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS outputs. The small 4-SMD form factor makes it suitable for space-constrained designs. Consider the enable/disable feature if power management or clock gating is necessary for the application. Verify that the standard XO type meets the phase noise and stability needs of the target system.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same package. The series provides standard crystal oscillators with LVCMOS outputs. Other variants in this family differ primarily in their operating frequencies while maintaining similar electrical characteristics and physical dimensions.

Replacement Considerations

Direct substitutes must match the 13.5546 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Cross-reference with other manufacturers offering identical specifications to ensure pinout and electrical compatibility.