18QHTF21-80.400-PD

Overview

The 18QHTF21-80.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 80.4 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a power-down standby mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down standby functionality
• Utilizes LVCMOS output interface

Applications

• General clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational needs. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a precise 80.4 MHz reference is required in space-constrained designs. The LVCMOS output ensures compatibility with standard digital logic families. Consider the power-down feature if battery life or thermal management is critical for the target application environment.

Part Context

This model belongs to the Mercury Electronics XO series, designed for high-reliability timing applications. The manufacturer specializes in quartz crystals and oscillators, leveraging decades of experience in frequency control products. This specific part represents a standard performance level within their portfolio.

Replacement Considerations

Compatible alternatives include other 80.4 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Ensure equivalent supply voltage and pinout compatibility when substituting. Verify that the replacement part meets the same temperature range and stability specifications.