18QHTF21-13.521-OE

Overview

The 18QHTF21-13.521-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.521 MHz and utilizes an LVCMOS output signal format. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Standard XO type

Applications

• Timing and clock signal generation
• Electronic device synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure compatibility with the 1.8V supply voltage and confirm that the 4-SMD No Lead package dimensions fit within your PCB layout constraints. Cross-reference the manufacturer's datasheet for absolute maximum ratings to prevent operational failure.

Selection Notes

Select this component when a stable 13.521 MHz clock source is required with low-voltage operation. Consider the LVCMOS output level compatibility with downstream logic circuits. Evaluate the need for the enable/disable pin if power conservation during idle states is critical for the system architecture.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options. This specific model provides a fixed 13.521 MHz output, distinguishing it from other variants in the lineup that may offer different frequencies or supply voltages.

Replacement Considerations

Check for direct substitutes with identical 13.521 MHz frequency, LVCMOS output, and 1.8V supply voltage. Verify pinout compatibility for the 4-SMD No Lead package. Ensure any replacement maintains the same enable/disable functionality and physical footprint.