18QHTF21-79.360-PD

Overview

The 18QHTF21-79.360-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 79.36 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a Standby (Power Down) control mode for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications.

Feature Summary

• Supports LVCMOS output logic for digital signal interfacing
• Includes Standby (Power Down) functionality to reduce power consumption
• Designed for surface-mount assembly using a 4-SMD, No Lead package

Applications

• General clock generation for digital circuits
• Embedded systems requiring low-voltage timing sources
• Portable electronic devices utilizing surface-mount technology

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the datasheet for precise electrical characteristics to guarantee compatibility with your application's timing specifications.

Selection Notes

Select this component when a 79.36 MHz clock source is required with LVCMOS outputs. Consider the 1.8V supply constraint and the need for power-down capabilities. Evaluate the physical dimensions of the 4-SMD package against available board space. Compare performance metrics such as phase noise and stability if specified in official documentation to ensure suitability for the intended electronic environment.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options. Mercury Electronics is a manufacturer with a history in quartz crystal production. This specific model provides a fixed frequency solution for timing applications requiring standard packaging and logic levels.

Replacement Considerations

Consult official substitution lists or cross-reference databases for compatible parts. Verify that any alternative maintains the 79.36 MHz frequency, 1.8V operation, and LVCMOS output. Ensure pinout compatibility and package dimensions match the 4-SMD form factor to avoid rework.