18QHTF21-85.3444-OE

Overview

The 18QHTF21-85.3444-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.3444 MHz and utilizes an LVCMOS output signal format. The device is designed for low voltage applications, specifically supporting a supply voltage of 1.8V. It features integrated enable and disable control functionality to manage power consumption during operation. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output signal compatibility
• Includes hardware enable and disable control pins
• Operates at a nominal supply voltage of 1.8V

Applications

• Digital communication systems requiring precise clock signals
• Embedded processing units needing stable timing references
• Consumer electronics with low-power surface-mount requirements

Procurement Notes

Verify the specific frequency suffix matches the required system clock speed before ordering. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint corresponds to the PCB layout specifications. Check for any specific enable pin logic level requirements in the host system documentation.

Selection Notes

Select this component when a fixed frequency of 85.3444 MHz is required for synchronous digital interfaces. The LVCMOS output is appropriate for standard logic families operating at 1.8V. Consider the enable feature if power management during idle states is necessary. The small form factor makes it suitable for space-constrained portable devices.

Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series offers various frequencies tailored for different digital applications. The 'OE' suffix typically denotes a specific packaging or tape-and-reel configuration variant within the manufacturer's catalog structure.

Replacement Considerations

Direct substitutes must match the 85.3444 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package. Verify pinout compatibility and enable logic polarity before swapping. Cross-reference with other manufacturers offering similar low-voltage XO components.