18QHTF21-27.15469-OE

Oscillators Overview

The 18QHTF21-27.15469-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.15469 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, no lead package suitable for surface-mount applications.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Integrates enable/disable functionality for power management
• Designed for surface-mount assembly with a no-lead package

Oscillators Applications

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

Oscillators Procurement Notes

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

Oscillators Selection Notes

Select this component when a precise 27.15469 MHz clock source is required for low-voltage digital circuits. The LVCMOS output ensures compatibility with standard logic families operating at 1.8V. Consider the enable pin feature if dynamic power saving or clock gating is necessary within the application architecture. Verify thermal performance limits for the intended operating environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequency options within a small form factor. These components are designed to replace discrete crystal and resonator combinations, providing a ready-made clock signal solution for modern electronic designs requiring high reliability and space efficiency.

Oscillators Replacement Considerations

Direct substitutes may include other 27.15469 MHz LVCMOS oscillators in 4-SMD packages from manufacturers such as Epson, Nihon Dempa Kogyo, or SiTime. Ensure equivalent electrical specifications including supply voltage, current consumption, and output swing levels. Mechanical compatibility must be verified to ensure the replacement fits the existing PCB land pattern without modification.