18QHTF21-67.300-OE

Overview

The 18QHTF21-67.300-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 67.3 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features enable/disable control 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
• Compact 4-SMD no lead surface mount package

Applications

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

Procurement Notes

Verify the exact frequency specification against official datasheets, as similar part numbers may vary slightly (e.g., 65.3 MHz or 67.563 MHz). Confirm the 1.8V supply requirement and LVCMOS output type match the target circuit design before ordering to ensure electrical compatibility.

Selection Notes

Select this component when a low-profile 4-pin SMD oscillator is required for 1.8V logic systems. Ensure the application supports LVCMOS outputs and requires an enable pin for power management. Verify that the 67.3 MHz frequency aligns with the specific system clock requirements.

Part Context

This model belongs to the Mercury Electronic 18QHTF series of standard crystal oscillators. The series typically offers various frequencies within a small form factor, catering to portable electronics and compact digital devices where space constraints are critical.

Replacement Considerations

Direct substitutes include other 67.3 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation from compatible manufacturers. Cross-reference pinouts and enable logic polarity to ensure functional equivalence.