18QHTF21-20.576-PD

Oscillators Overview

The 18QHTF21-20.576-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 20.576 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, featuring a supply voltage of 1.8V. It includes a standby or power-down function to manage energy consumption during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power management
• Low voltage operation at 1.8V
• Compact surface-mount packaging

Oscillators Applications

• Digital clock signal generation
• Embedded system timing references
• Communication equipment synchronization
• Portable electronic devices requiring low power

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package dimensions match the PCB footprint requirements. Check for any RoHS compliance certifications if required by project specifications.

Oscillators Selection Notes

Select this component when a stable 20.576 MHz reference is needed with minimal power consumption. The LVCMOS output is suitable for standard digital interfaces. Consider the 1.8V requirement for compatibility with modern low-power logic families. The small form factor aids in space-constrained designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. Mercury is a established manufacturer of frequency control products, including quartz crystals and oscillators, with a history dating back several decades in Taiwan.

Oscillators Replacement Considerations

Direct substitutes may include other 20.576 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and stability before substitution.