18QHTF21-21.005084-PD

Oscillators Overview

The 18QHTF21-21.005084-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 21.005084 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output logic interface
• Standby (Power Down) control capability
• Compact 4-SMD, No Lead surface-mount package

Oscillators Applications

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

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 21.005084 MHz clock source is required with low-power standby functionality. The LVCMOS output is suitable for direct interfacing with standard digital logic families operating at 1.8V. Consider the small form factor for space-constrained designs where surface-mount technology is preferred over through-hole alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics Ind. Co. Ltd, a manufacturer established in 1973 specializing in frequency control products. The series typically includes various frequencies within a standardized 4-SMD package, offering consistent performance characteristics across different model variants for designers seeking reliable quartz-based oscillators.

Oscillators Replacement Considerations

Direct substitutes must match the 21.005084 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pin compatibility and electrical specifications with alternative manufacturers' equivalent parts to ensure seamless integration without redesigning the host circuit board.