18QHTF21-66.700-OE

Overview

The 18QHTF21-66.700-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 66.7 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports 1.8V supply voltage operation
• Integrates enable/disable control functionality
• Provides LVCMOS output signal compatibility

Applications

• General clock generation in electronic circuits
• Embedded systems requiring low-voltage timing sources
• Portable devices utilizing SMD packaging

Procurement Notes

Verify the specific suffix (OE) against the manufacturer's official documentation to confirm exact electrical characteristics and pinout configuration. Ensure the required operating temperature range and load capacitance match the target design specifications before finalizing procurement decisions.

Selection Notes

Select this component when a 66.7 MHz clock source is required within a 2.0x1.6 mm footprint. Consider the 1.8V supply constraint and LVCMOS interface requirements. Evaluate the enable/disable feature necessity for system power efficiency compared to continuous-operation alternatives.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline package format designed for high-density PCB layouts.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts but different frequencies or voltages, such as the 18QHTF21-65.300-OE or 18QHTF21-21.200-OE, provided the frequency difference is acceptable for the application.