18QHTF21-42.95454-OE

Oscillators Overview

The 18QHTF21-42.95454-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 42.95454 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the enable/disable pin configuration matches the control logic available in the host application to guarantee proper operation and power state management.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V clock source is required with minimal footprint. The LVCMOS output ensures direct interfacing with standard digital logic families without additional level shifting. The enable feature allows for dynamic power control, making it suitable for battery-operated or power-sensitive designs requiring precise 42.95454 MHz timing.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies within the LVCMOS format. The 'OE' suffix typically denotes a specific ordering or packaging variant defined by the manufacturer. These components are part of Mercury's broader portfolio of quartz-based frequency control products, including crystals and filters.

Oscillators Replacement Considerations

Direct replacements must match the 42.95454 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical specifications such as current consumption and duty cycle. Cross-reference with other manufacturers offering equivalent LVCMOS XO devices in the same package style.