18QHTF21-74.500-OE

Overview

The 18QHTF21-74.500-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 74.5 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component includes enable and disable control functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Integrates LVCMOS output logic for digital signal compatibility
• Features active enable and disable control pins for power optimization
• Utilizes a lead-free surface-mount package design

Applications

• General clock generation in embedded systems
• Timing reference for digital communication interfaces
• Power-sensitive portable electronic devices

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct voltage and package configuration. Confirm that the OE variant matches the required enable/disable functionality. Request updated datasheets directly from Mercury Electronics to validate electrical parameters prior to integration into final designs.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise 74.5 MHz timing. The small 2.0x1.6mm footprint makes it suitable for space-constrained layouts. Ensure the system design supports LVCMOS logic levels and provides necessary control signals for the enable pin.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The -OE suffix typically denotes specific operational characteristics or packaging options within the product line, distinct from other variants like -PD.

Replacement Considerations

Direct substitutes include other 74.5 MHz LVCMOS oscillators in 4-SMD packages with 1.8V supply requirements. Verify pinout compatibility and enable function availability before swapping. Cross-reference with Mercury's internal cross-reference lists for confirmed equivalent part numbers.