18QHTF21-21.442148-PD

Oscillators Overview

The 18QHTF21-21.442148-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 21.442148 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• Digital signal processing circuits
• Communication equipment timing references
• Embedded system clock generation

Oscillators Procurement Notes

Verify the specific ordering suffix PD against the manufacturer's current datasheet to ensure compatibility with required specifications. Confirm that the 1.8V supply voltage aligns with the target circuit design before procurement. Ensure the 4-SMD package dimensions fit within the designated PCB footprint constraints.

Oscillators Selection Notes

Select this component when a stable 21.442148 MHz reference is required for low-voltage digital systems. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the power-down feature if system-level power efficiency is a priority during idle states.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series typically offers various frequencies and output types within small form factors, catering to modern electronics that demand high precision and minimal board space.

Oscillators Replacement Considerations

Consult official substitution lists for compatible oscillators with matching 21.442148 MHz frequency, LVCMOS output, and 1.8V operation. Verify pinout and mechanical dimensions before replacing to ensure seamless integration without PCB redesign.

Oscillators FAQ

What is the output logic type?

The output logic type is LVCMOS.

Does the device support power saving modes?

Yes, it features a standby or power-down function.