18QHTF21-12.228-OE

Overview

The 18QHTF21-12.228-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 12.228 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features an enable/disable control pin for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes hardware enable/disable functionality for power optimization
• Utilizes quartz-based resonance for stable frequency generation

Applications

• General clock signal distribution in embedded systems
• Timing reference for low-voltage digital circuits
• Power-sensitive portable electronic devices

Procurement Notes

Verify the specific electrical parameters, such as frequency stability and load capacitance, against the official datasheet before integration. Confirm that the 1.8V supply requirement aligns with the target system's power rails. Ensure the 4-SMD package footprint matches the PCB design guidelines to guarantee proper soldering and mechanical reliability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling levels. The integrated enable pin makes it suitable for designs prioritizing energy efficiency through active/inactive state control. Consider the 4-SMD form factor for space-constrained layouts where surface-mount technology is preferred over through-hole alternatives.

Part Context

This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequency options within a consistent 4-SMD package profile. The suffix OE indicates specific operational characteristics or packaging variants defined by the manufacturer for this product line.

Replacement Considerations

Consult the manufacturer's cross-reference list for direct substitutes. Verify that any alternative maintains the 1.8V supply voltage, LVCMOS output type, and 4-SMD package dimensions to ensure mechanical and electrical compatibility without redesigning the host circuit.