18QHTF21-40.0789-OE

Oscillators Overview

The 18QHTF21-40.0789-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.0789 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for operation within a specified temperature range suitable for electronic applications.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features enable/disable pin control for power management
• Utilizes a small form factor SMD package for surface mount assembly

Oscillators Applications

• General clock signal generation in electronic circuits
• Data communication interfaces requiring precise timing
• Embedded systems utilizing low-voltage logic families

Oscillators Procurement Notes

Verify the specific supply voltage requirement of 1.8V against the target circuit design to ensure compatibility. Confirm that the LVCMOS output levels match the receiving input thresholds. Check the physical footprint requirements for the 2.0x1.6mm package during PCB layout. Ensure the operating temperature range meets the environmental conditions of the final application. Validate the enable/disable functionality integration if power saving modes are utilized.

Oscillators Selection Notes

Select this component when a precise 40.0789 MHz clock source is required in space-constrained designs. Consider the 1.8V supply constraint and LVCMOS output characteristics for system compatibility. Evaluate the need for active enable/disable control versus always-on operation. Compare package size against available board real estate. Assess thermal performance requirements against the specified operating temperature range.

Oscillators Part Context

This oscillator belongs to the Mercury Electronics 18QHTF series, which focuses on low-voltage, small-footprint clock solutions. The manufacturer specializes in quartz-based frequency control products, including crystals and oscillators. This specific model represents a standard XO variant optimized for modern digital electronics requiring minimal power consumption and reduced board area.

Oscillators Replacement Considerations

Direct substitutes must match the 40.0789 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify equivalent electrical parameters and pinout configurations before replacement.