18QHTF21-42.840-OE

Oscillators Overview

The 18QHTF21-42.840-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 42.84 MHz and utilizes LVCMOS output levels. 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 designed for surface mount applications.

Oscillators Feature Summary

• Standard XO configuration with LVCMOS output
• Integrated enable/disable functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• General purpose clock generation
• Digital signal processing systems
• Embedded microcontroller interfaces

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required system clock speed. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD package footprint corresponds to the PCB layout specifications before ordering.

Oscillators Selection Notes

Select this component when a low-voltage CMOS interface is required for timing applications. The enable pin allows for power management integration. Verify temperature range requirements against the standard operating specifications provided in the official datasheet.

Oscillators Part Context

This model belongs to the Mercury Electronics series of quartz crystal oscillators. The manufacturer specializes in frequency control products including crystals and resonators. The part number indicates a specific frequency variant within their standard XO lineup.

Oscillators Replacement Considerations

Check for other variants in the 18QHTF21 series with different frequency suffixes if the exact 42.84 MHz rate is not required. Ensure any substitute maintains the same LVCMOS output type and 1.8V supply requirement.