18QHTF21-81.0755-OE

Overview

The 18QHTF21-81.0755-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 81.0755 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interfacing
• Includes enable and disable control capabilities
• Designed for low voltage operation at 1.8V

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 81.0755 MHz clock source is required with low voltage compatibility. Consider the enable/disable feature if power management or clock gating is necessary for the application. Evaluate the operating temperature range and stability requirements to ensure suitability for the intended environmental conditions.

Part Context

This model belongs to the QHTF series of standard oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 18 prefix indicates the 1.8V supply variant. These components are part of Mercury's broader portfolio of quartz crystals and frequency control products established since 1973.

Replacement Considerations

Check datasheets for equivalent models with matching frequency and voltage. Verify pinout compatibility for direct replacement. Ensure output logic levels and package dimensions are identical to avoid redesign efforts.