18QHTF21-12.288-OE

Overview

The 18QHTF21-12.288-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.288 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an Enable/Disable control function via the OE pin. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports active low enable/disable functionality for power management
• Utilizes LVCMOS output interface for digital compatibility
• Designed in a small form factor surface-mount package

Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded controllers needing low-voltage clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a stable 12.288 MHz reference is needed for LVCMOS-compatible digital circuits. Consider the 1.8V operating voltage to ensure compatibility with low-power microcontrollers. The enable pin allows for dynamic power control, making it suitable for battery-operated or energy-efficient designs requiring clock gating capabilities.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm package. The series supports multiple output voltages and includes enable/disable options. It serves as a direct replacement for other industry-standard oscillators requiring similar electrical characteristics and physical dimensions.

Replacement Considerations

Direct substitutes include other 12.288 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and enable logic polarity when cross-referencing with competitors. Ensure thermal performance and frequency stability meet the original specifications.