18QHTF21-6.4983-OE

Overview

The 18QHTF21-6.4983-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 6.4983 MHz and utilizes LVCMOS output signaling. The device is designed for low-power applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable control functionality
• Low-power design optimized for battery-operated systems
• Surface-mount 4-SMD no-lead package configuration

Applications

• Low-power portable electronic devices
• Digital logic clock generation
• Battery-operated consumer electronics
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific environmental operating temperature ranges required by your application standards.

Selection Notes

Select this component when a precise 6.4983 MHz reference is needed with minimal power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable pin if power management during idle states is critical. The small form factor makes it ideal for space-constrained designs where traditional through-hole oscillators cannot fit.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This series typically offers standard XO configurations with various frequency options, catering to general-purpose timing needs in modern electronics manufacturing.

Replacement Considerations

Direct substitutes include other 6.4983 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications such as jitter and stability before swapping. Cross-reference with similar Mercury models like the 18QHTF21-6.300-OE only if frequency adjustment is acceptable.