18QHTF21-67.128-OE

Overview

The 18QHTF21-67.128-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fundamental frequency of 67.128 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable clock generation at 67.128 MHz using LVCMOS interface
• Features low voltage operation at 1.8V with integrated enable/disable control
• Utilizes a miniature 4-SMD no-lead footprint for space-constrained designs

Applications

• Digital signal processing systems requiring precise clock synchronization
• Communication equipment utilizing LVCMOS compatible interfaces
• Portable electronic devices necessitating low-power consumption timing sources

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and enable pin configurations. Confirm that the 1.8V supply requirement aligns with the target system's power rails. Ensure the 4-SMD no-lead package dimensions fit within the designated PCB area constraints before finalizing procurement decisions.

Selection Notes

Select this component when a fixed frequency of 67.128 MHz is required with LVCMOS outputs. Consider the 1.8V operating voltage and enable functionality for power-sensitive designs. Evaluate the small 2.0x1.6 mm package size against available board space. Verify temperature stability requirements against standard XO specifications if environmental extremes are expected.

Part Context

Mercury Electronic Ind. Co., Ltd specializes in frequency control products including quartz crystals and oscillators. This model belongs to their series of surface-mount crystal oscillators designed for consumer and industrial electronics. The company has decades of experience in manufacturing timing components, positioning this part as a standard solution for general-purpose clock generation needs.

Replacement Considerations

Direct substitutes must match the 67.128 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD no-lead package outline. Cross-reference pinouts for enable/disable functionality to ensure electrical compatibility during replacement scenarios.