18QHTF21-20.333-PD

Oscillators Overview

The 18QHTF21-20.333-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 20.333 MHz and utilizes an LVCMOS output interface. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power reduction
• Compact 4-SMD no lead surface-mount package

Oscillators Applications

• Digital clock signal generation
• Microprocessor timing references
• Communication system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 20.333 MHz reference is required in low-voltage environments. The LVCMOS output ensures direct interfacing with standard logic families without additional buffering. Consider the power-down feature if system efficiency is critical. Validate thermal performance and operating temperature range against application constraints to ensure long-term reliability.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and packaging. Mercury Electronics is a recognized manufacturer of quartz crystals and frequency control products, providing standardized solutions for timing applications across industrial and consumer electronics sectors.

Oscillators Replacement Considerations

Direct substitutes must match the 20.333 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify pinout compatibility and electrical parameters such as rise/fall times and duty cycle. Cross-reference with other manufacturers offering equivalent XO specifications to ensure functional interchangeability without redesigning the host circuit.