18QHTF21-74.175824-OE

Overview

The 18QHTF21-74.175824-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 74.175824 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 with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features integrated enable and disable control functionality
• Designed for low voltage operation at 1.8V

Applications

• General clock signal generation in electronic circuits
• Digital systems requiring precise timing references
• Embedded devices utilizing standard oscillator interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. 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. Check for any specific environmental operating temperature ranges required by your application to ensure reliable performance under all conditions.

Selection Notes

Select this component when a precise 74.175824 MHz clock source is required for LVCMOS-compatible digital logic. Consider the 1.8V operating voltage to ensure compatibility with low-power microcontrollers or FPGAs. Evaluate the small 2.0x1.6mm package size against available board space. Verify that the enable/disable feature meets your power management strategy needs for the target application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD no-lead form factor. These components are designed for applications requiring stable clock signals in compact electronic designs, serving as primary timekeeping elements for digital systems.

Replacement Considerations

Direct substitutes include other 74.175824 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.