18QHTF21-8.589935-OE

Overview

The 18QHTF21-8.589935-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.589935 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable/disable functionality for power management
• Designed for low-voltage operation at 1.8V

Applications

• General-purpose clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin configuration matches your control logic. Check the 4-SMD no lead package dimensions for PCB footprint compatibility. Validate operating temperature range suitability for your environment.

Selection Notes

Select this component when a stable 8.589935 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V supply constraint and the need for active enable/disable control. Evaluate the small form factor of the 4-SMD package against available board space. Compare performance metrics such as phase noise and stability if critical for your application.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 'OE' suffix typically denotes a specific ordering or packaging variant within the manufacturer's catalog. These components are part of Mercury's broader portfolio of quartz-based frequency control products.

Replacement Considerations

Direct substitutes must match the 8.589935 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no lead package. Verify equivalent electrical characteristics including frequency stability and operating temperature range. Ensure pinout compatibility for the enable/disable function. Consult manufacturer cross-reference lists for verified alternatives.