18QHTF21-17.7776-OE

Oscillators Overview

The 18QHTF21-17.7776-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 17.7776 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact surface-mount package design

Oscillators Applications

• Timing and clock generation circuits
• High-performance digital systems requiring precise frequency references
• Embedded devices utilizing LVCMOS interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to prevent assembly issues.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling. The enable/disable feature allows for power management strategies in battery-operated applications. Consider the small 2.0x1.6mm footprint for space-constrained designs where standard through-hole or larger SMD oscillators do not fit.

Oscillators Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies within a similar form factor. The suffix indicates specific electrical characteristics and packaging details unique to this variant compared to other models in the family.

Oscillators Replacement Considerations

Direct substitutes must match the 17.7776 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and thermal specifications before substitution.