18QHTF21-13.517-OE

Overview

The 18QHTF21-13.517-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.517 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features enable/disable pin control for power management flexibility
• Utilizes a leadless SMD package for automated surface-mount assembly

Applications

• General purpose clock signal generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interfaces requiring stable clock sources

Procurement Notes

Verify the specific suffix 'OE' corresponds to the Enable/Disable functionality and LVCMOS output type as documented in the official Mercury Electronics datasheet. Confirm that the 1.8V supply requirement aligns with your system design before procurement. Ensure the 4-SMD No Lead package dimensions fit your PCB footprint constraints.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside active enable/disable control capabilities. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the 13.517 MHz frequency specifically if it matches the target system clock requirements or peripheral synchronization needs.

Part Context

This part belongs to the Mercury Electronics QHTF series of quartz crystal oscillators. The series typically offers various frequencies and voltage options within small form factors. The '18' prefix likely indicates the 1.8V supply variant, while 'OE' denotes the enable function, distinguishing it from continuous-output models.

Replacement Considerations

Direct substitutes include other 13.517 MHz LVCMOS oscillators with 1.8V supply and enable pins in 4-SMD packages. Verify electrical parameters such as load capacitance and pull range match exactly. Cross-reference package dimensions to ensure mechanical compatibility without PCB redesign.