18QHTF21-6.5536-PD

Overview

The 18QHTF21-6.5536-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 6.5536 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Utilizes LVCMOS output logic

Applications

• Battery-powered electronic devices
• Portable consumer electronics
• General clock signal generation

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 no-lead package footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliable assembly.

Selection Notes

Select this component when a precise 6.5536 MHz clock source is required for digital circuits. The low operating voltage makes it suitable for modern low-power systems. Consider the small form factor for space-constrained designs. Verify that the LVCMOS output compatibility matches the input requirements of the connected microcontroller or FPGA.

Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The 'PD' suffix indicates the inclusion of a power-down feature. These components are designed for applications requiring stable clock signals in compact electronic assemblies.

Replacement Considerations

Direct substitutes include other 6.5536 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical specifications before substitution.