18QHTF21-66.532547-OE

Overview

The 18QHTF21-66.532547-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 66.532547 MHz and utilizes LVCMOS output logic. The component requires a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports enable/disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Designed for surface-mount assembly in space-constrained applications

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded controller timing references

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application design before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 2.0x1.6mm footprint matches the PCB layout constraints. Cross-reference the datasheet for operating temperature range specifications to guarantee reliability under expected environmental conditions.

Selection Notes

Select this component when a precise 66.532547 MHz reference is required with low voltage operation. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the small form factor for dense circuit board designs. Evaluate the enable/disable feature if dynamic power saving is necessary for the specific end-use device.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature surface-mount oscillators. The series typically offers various frequencies within a standardized 2.0x1.6mm package. It serves as a timing source for modern electronic devices requiring stable clock signals in compact enclosures.

Replacement Considerations

Direct substitutes must match the 66.532547 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before substitution.