18QHTF21-11.500-OE

Overview

The 18QHTF21-11.500-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.5 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
• Integrated enable/disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply voltage aligns with the system power rails. Confirm that the enable pin logic levels are compatible with the controlling microcontroller or GPIO to ensure proper activation and deactivation of the oscillator during operation.

Selection Notes

Select this component when a low-voltage 1.8V supply is available and LVCMOS outputs are required. The small 4-SMD footprint makes it suitable for space-constrained designs. Consider the enable feature if dynamic power saving is necessary. Verify that the 11.5 MHz frequency meets the system clock requirements without needing external dividers or multipliers.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile surface-mount oscillators. The series typically offers various frequencies and voltage options. The 'OE' suffix likely denotes a specific packaging or tape-and-reel configuration, though exact details require datasheet confirmation. It serves as a timing source for digital circuits.

Replacement Considerations

Direct substitutes must match the 11.5 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check pinout compatibility carefully. Other manufacturers offering similar low-profile XO devices may require schematic adjustments for enable pins or voltage levels.