18QHTF21-38.910-OE

Oscillators Overview

The 18QHTF21-38.910-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 38.91 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features an integrated enable/disable control function for power optimization
• Designed for low-voltage operation at 1.8V supply

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for microcontrollers and processors
• Digital communication interfaces requiring precise frequency stability

Oscillators Procurement Notes

Verify the specific suffix 'OE' corresponds to the enable/disable functionality when sourcing replacements. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern design. Cross-reference the 38.91 MHz frequency requirement against the application's timing specifications to avoid clock mismatch issues.

Oscillators Selection Notes

Select this component when a low-profile, single-ended LVCMOS oscillator is required for 1.8V logic domains. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the 4-SMD package size constraints during layout planning. Verify temperature range requirements against the datasheet specifications before finalizing the bill of materials.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. This part belongs to their series of surface-mount crystal oscillators. The company has a history of manufacturing timing components since 1973, focusing on reliability and precision for industrial and consumer electronics applications.

Oscillators Replacement Considerations

Direct substitutes must match the 38.91 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that any replacement also includes an enable/disable pin configuration to maintain system power management capabilities.