18QHTF21-75.938-OE

Overview

The 18QHTF21-75.938-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 75.938 MHz and utilizes LVCMOS output logic. The device is designed for low voltage applications, featuring a supply voltage of 1.8V. It includes an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for standard digital interfacing
• Integrated enable/disable control functionality
• Low voltage operation at 1.8V supply
• Surface-mount 4-SMD no lead package

Applications

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

Procurement Notes

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

Selection Notes

Select this component when a precise 75.938 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for standard CMOS logic families. Consider the enable pin feature if power management or clock gating is necessary within the design. Verify environmental temperature ranges meet operational needs.

Part Context

This part belongs to the Mercury Electronics XO (Standard) series, which provides reliable frequency control solutions. The manufacturer has extensive experience in quartz crystal production. The 18QHTF21 series typically offers stable performance for various electronic applications requiring accurate timing signals.

Replacement Considerations

Direct substitutes must match the 75.938 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Check compatibility of pin definitions and electrical characteristics. Consult official cross-reference lists from Mercury Electronics for verified alternatives.