18QHTF21-11.28845-OE

Overview

The 18QHTF21-11.28845-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 11.28845 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

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

Applications

• Embedded systems requiring precise timing references
• Digital signal processing circuits
• Communication modules utilizing standard clock interfaces

Procurement Notes

Verify the specific suffix 'OE' indicates the Enable/Disable feature when sourcing replacements. Confirm the operating temperature range and load capacitance requirements against the target circuit design. Ensure the 1.8V supply rail stability meets the oscillator's specifications to maintain frequency accuracy during operation.

Selection Notes

Select this component when a small form factor is required alongside low-power capabilities. The 1.8V supply requirement dictates compatibility with modern low-voltage logic families. The enable/disable functionality makes it suitable for battery-operated devices where power conservation during idle states is critical for system efficiency.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm SMD footprint. The series provides options for different output types and supply voltages, allowing designers to select components based on specific interface and power constraints while maintaining consistent physical integration across designs.

Replacement Considerations

Direct substitutes include other 11.28845 MHz oscillators in 4-SMD packages with LVCMOS outputs and 1.8V supplies. Verify that alternative parts support the enable/disable control function if power management is required. Check dimensional tolerances to ensure board layout compatibility.