18QHTF21-85.768-OE

Overview

The 18QHTF21-85.768-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 85.768 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

• LVCMOS output logic for digital interface compatibility
• Enable/Disable functionality for power management
• Compact 4-SMD No Lead surface-mount package

Applications

• General electronic equipment requiring clock signals
• Embedded systems with low-voltage logic interfaces
• Consumer electronics utilizing surface-mount components

Procurement Notes

Verify the specific part number 18QHTF21-85.768-OE against official Mercury Electronics documentation to confirm the 85.768 MHz frequency and 1.8V operating voltage. Ensure the LVCMOS output type and Enable/Disable feature match the design requirements. Confirm the 4-SMD No Lead package dimensions for PCB layout compatibility before ordering.

Selection Notes

Select this component when a stable 85.768 MHz clock source is required for 1.8V logic circuits. The Enable/Disable pin allows for active power saving during idle periods. The small form factor makes it appropriate for space-constrained designs. Verify that the load capacitance and stability specifications meet the target system's timing accuracy needs.

Part Context

This oscillator belongs to the Mercury Electronics SMD series, characterized by small footprints and low power consumption. The 'OE' suffix typically denotes the Enable/Disable control option, distinguishing it from models with Standby or other control functions. It is part of a family offering various frequencies within the same physical package.

Replacement Considerations

Direct substitutes must match the 85.768 MHz frequency, 1.8V supply, LVCMOS output, and Enable/Disable control. Models like 18QHTF21-96.768-OE share the package and control style but differ in frequency. Verify pinout and electrical parameters before swapping.