18QHTF21-18.432-PD

Oscillators Overview

The 18QHTF21-18.432-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.432 MHz and utilizes an LVCMOS output signal format. The device is designed for a supply voltage of 1.8V and features a power-down function controlled via an enable/disable pin. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output interface
• 1.8V supply voltage operation
• Power-down capability via enable pin
• Compact 4-SMD no-lead package

Oscillators Applications

• General-purpose digital timing circuits
• Microcontroller clock sources
• Communication equipment synchronization
• Consumer electronics timing references

Oscillators Procurement Notes

Verify the exact frequency tolerance and operating temperature range specifications from the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with your system design requirements. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any specific handling instructions related to surface-mount assembly processes.

Oscillators Selection Notes

Select this component when a precise 18.432 MHz clock signal is required for low-voltage digital systems. The LVCMOS output is suitable for direct interfacing with standard logic families. The power-down feature allows for energy savings in battery-operated devices. Consider the small form factor for space-constrained applications requiring reliable frequency control.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequency options in a standardized 2.0x1.6mm package. The series is known for providing stable frequency generation for embedded systems. Similar models in the lineup include variants with different frequencies such as 6.000 MHz or 75.656 MHz, all sharing the same physical footprint and electrical characteristics.

Oscillators Replacement Considerations

Direct substitutes may include other 18.432 MHz XO oscillators in a 4-SMD 2.0x1.6mm package with LVCMOS output and 1.8V operation. Verify compatibility regarding pinout configuration, especially the enable/disable pin functionality. Ensure equivalent frequency stability and phase jitter specifications are met for critical timing applications.