18QHTF21-66.580-OE

Overview

The 18QHTF21-66.580-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 66.58 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, suitable for surface-mount assembly. This series supports various frequencies and voltage options within the QHTF family.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific suffix 'OE' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the 1.8V supply voltage aligns with the target system's power rails. Confirm the 4-SMD package dimensions fit the PCB footprint constraints. Cross-reference the part number with official Mercury Electronics documentation to avoid substitution errors.

Selection Notes

Select this component when a precise 66.58 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for standard digital logic families. Consider the enable/disable feature if power management is critical. Compare package size against available board space. Verify temperature range specifications against the operating environment requirements before finalizing the selection.

Part Context

This oscillator belongs to the QHTF series from Mercury Electronic Ind. Co., Ltd, a manufacturer specializing in quartz frequency control products. The series includes various XO models with different frequencies and supply voltages. Mercury Electronics has a long history in Taiwan's quartz industry, producing crystals and oscillators for diverse electronic applications.

Replacement Considerations

Check for direct substitutes such as 18QHTF21-66.580-PD or other variants in the 18QHTF21 series with matching frequency and voltage. Ensure any replacement maintains the LVCMOS output type and 4-SMD package form factor. Verify that the alternative part meets the same electrical specifications and mechanical dimensions.