18QHTF21-27.912709-PD

Oscillators Overview

The 18QHTF21-27.912709-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 27.912709 MHz and utilizes LVCMOS output logic. The component requires a 1.8V supply voltage and features a Standby (Power Down) control function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The device is designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides LVCMOS output signal compatibility

Oscillators Applications

• Digital clock generation
• Microcontroller system timing
• Communication interface synchronization

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package specifications. Confirm that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet to ensure reliable oscillator performance.

Oscillators Selection Notes

Select this component when a precise 27.912709 MHz reference is required for LVCMOS-compatible circuits. The choice is driven by the need for a small form factor and low power consumption due to the standby feature. Consider the operating temperature range and supply voltage stability to ensure consistent frequency accuracy in the target environment.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, characterized by standard output types and surface-mount packaging. The model number indicates the specific frequency and package style. It is distinct from other variants in the series by its unique frequency value and voltage specification, serving as a dedicated timing source for embedded systems.

Oscillators Replacement Considerations

Direct substitutes must match the 27.912709 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available in the replacement datasheet.

Oscillators FAQ

What is the output logic type?

The output logic type is LVCMOS.

Does the device support power saving modes?

Yes, it includes a Standby (Power Down) function.