18QHTF21-84.672-OE

Overview

The 18QHTF21-84.672-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 84.672 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable and disable control functionality for power management
• Designed for surface mount assembly using a 4-SMD no lead package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout constraints. Cross-reference the datasheet specifications to validate performance under expected operating temperature conditions.

Selection Notes

Select this component when a precise 84.672 MHz clock source is required with low voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable pin feature if dynamic power saving or clock gating is necessary for the system architecture. Verify thermal performance within the specified operating range.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a small form factor. The manufacturer specializes in quartz crystal products with extensive industry experience. This specific model provides a fixed frequency solution for applications requiring stable timing signals without the need for external tuning components.

Replacement Considerations

Direct substitutes must match the 84.672 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent models from other manufacturers ensuring identical electrical parameters and pin configuration. Verify that any alternative part supports the same enable/disable functionality and meets the required frequency stability standards.