18QHTF21-82.500-OE

Overview

The 18QHTF21-82.500-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 82.5 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features an enable/disable control pin for power management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• LVCMOS output logic compatibility
• Integrated enable/disable control functionality
• Compact surface-mount package design

Applications

• High-performance digital systems requiring precise timing
• Communication equipment clock sources
• Embedded systems with low-voltage requirements

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's power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a low-profile, 1.8V compatible oscillator is required for space-constrained designs. The LVCMOS interface ensures direct compatibility with standard digital logic families without additional level shifting. Consider the enable pin utility for applications requiring dynamic power management or clock gating capabilities within the system architecture.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal oscillators. The series offers various frequencies and voltage options, catering to diverse timing needs in consumer electronics and industrial applications. Mercury has been a pioneer in the Taiwan crystal industry since 1973, providing reliable frequency control solutions.

Replacement Considerations

Direct substitutes include other 82.5 MHz LVCMOS oscillators in 2.0x1.6mm packages from manufacturers like Epson or SiTime, provided they support 1.8V operation and have identical pinout configurations. Verify electrical parameters such as phase noise and jitter specs match the original design requirements.