18QHTF21-28.0777-OE

Oscillators Overview

The 18QHTF21-28.0777-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 28.0777 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Supports active enable and disable control states
• Designed for surface-mount assembly via leadless SMD package

Oscillators Applications

• Digital communication systems requiring precise clocking
• Embedded processor clock sources
• Data acquisition circuit timing references

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 to guarantee proper solder joint formation and mechanical stability during operation.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V interface is required alongside LVCMOS signaling standards. The choice depends on the necessity for an enable pin to manage power consumption or state control. Evaluate the physical size constraints of the 4-SMD package against available board space. Consider the operating temperature range if the environment exceeds standard commercial limits.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard specifications for general-purpose timing applications, balancing performance with cost-effectiveness for mass-produced electronic devices.

Oscillators Replacement Considerations

Direct substitutes must match the 28.0777 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent electrical parameters such as phase noise and jitter if specified in the original design. Cross-reference with other manufacturers offering identical form factors and pin configurations to ensure interchangeability without circuit modification.