18QHTF21-71.566667-OE

Overview

The 18QHTF21-71.566667-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 71.566667 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Standard XO configuration with LVCMOS output
• Integrated enable/disable functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable pin logic levels are compatible with your controlling microcontroller or FPGA to ensure proper oscillator activation and deactivation during operation.

Selection Notes

Select this component when a stable 71.566667 MHz reference is required in space-constrained designs. The LVCMOS interface simplifies integration with standard digital logic families. Consider the enable feature for power management strategies where the oscillator can be deactivated during idle periods to reduce overall system power consumption without sacrificing timing accuracy during active phases.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based timing solutions. The manufacturer has established expertise in producing crystal oscillators and filters since 1973. This specific model represents their standard XO line, offering reliable performance for general-purpose timing applications in consumer and industrial electronics markets.

Replacement Considerations

Direct substitutes must match the 71.566667 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pin compatibility and electrical characteristics with alternative manufacturers such as Epson or SiTime if Mercury parts are unavailable.