18QHTF21-76.857143-PD

Overview

The 18QHTF21-76.857143-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 76.857143 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down control feature. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

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

Applications

• General clock generation for digital circuits
• Embedded systems requiring precise timing references
• Portable electronic devices utilizing low-power components

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a stable 76.857143 MHz reference is required in space-constrained designs. The LVCMOS interface ensures compatibility with standard logic families. Consider the power-down capability if energy efficiency is critical. Verify operating temperature ranges meet environmental specifications for the intended application environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal oscillators. The series offers various frequencies and supply voltages within a small 2.0x1.6mm form factor. Mercury Electronics has decades of experience in frequency control products, positioning this model as a reliable solution for precision timing needs.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts but different frequencies, such as 18QHTF21-96.768-PD or 18QHTF21-30.300-PD, provided the frequency difference is acceptable for the application.