18QHTF21-13.5845-OE

Overview

The 18QHTF21-13.5845-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 13.5845 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications with a supply voltage range of 1.8V. It features an enable/disable control function to manage power consumption during inactive periods. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount designs.

Feature Summary

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

Applications

• Timing clock signal generation in embedded systems
• Data communication interface synchronization
• Consumer electronics timing references

Procurement Notes

Verify the specific suffix 'OE' against the manufacturer's current datasheet to confirm the enable/disable functionality and voltage specifications. Ensure the footprint matches the 2.0x1.6mm SMD land pattern. Cross-reference the frequency tolerance and load capacitance requirements with the target circuit design before finalizing procurement orders.

Selection Notes

Select this component when a 1.8V supply and LVCMOS output are required for a 13.5845 MHz reference. The enable feature is critical for battery-operated devices requiring power savings. Compare package dimensions against PCB layout constraints. Verify operating temperature range compliance for the intended environment.

Part Context

This part belongs to the QHTF series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and supply voltages. The '18' prefix typically indicates the 1.8V supply variant. The 'OE' suffix denotes the presence of an output enable control pin, distinguishing it from continuously running variants.

Replacement Considerations

Direct substitutes include the 18QHTF21-13.584-OE for a nominal 13.584 MHz frequency. Other Mercury Electronics parts in the 18QHTF21 series may serve as alternatives if frequency and voltage parameters align. Verify pinout and electrical characteristics before substitution.