54F240DC

Overview

The SN54F240DC is a military-grade octal buffer and driver featuring three-state outputs, manufactured by National Semiconductor. It operates within a supply voltage range of 4.5V to 5.5V and utilizes bipolar technology. The device provides high drive capability with a maximum output current (IOL) of 64mA and a maximum output current (IOH) of -15mA. It exhibits very high-speed performance with an average propagation delay ranging from 5ns to 10ns. The component supports over-voltage tolerant inputs and maintains a maximum supply current of 75000µA. Designed for harsh environments, it functions reliably across an operating temperature range of -55°C to 125°C.

Feature Summary

• Military-grade construction ensuring reliability in extreme environmental conditions
• Octal configuration providing eight independent buffered channels
• Three-state output capability allowing effective bus line driving and isolation

Applications

• High-speed data transmission systems requiring military specifications
• Bus-oriented memory and logic circuits
• Clock drivers and buffer circuits in aerospace applications

Procurement Notes

Verify the specific suffix 'DC' against official datasheets to confirm package type and material composition. Ensure the procurement source provides traceability documentation required for military-grade components. Confirm that the device meets all environmental and burn-in processing standards specified for the 54F series. Validate input parameters against the manufacturer's latest revision to ensure compatibility with system requirements.

Selection Notes

Select this component when designing systems that require high-speed signal buffering under strict military environmental standards. The bipolar technology offers robust drive strength suitable for heavy capacitive loads on bus lines. Consider the wide operating temperature range if the application involves exposure to extreme thermal variations. Verify that the power supply constraints align with the specified 4.5V to 5.5V operational window.

Part Context

This part belongs to the 54F family of logic devices, which are characterized by their high-speed performance and military qualification. Unlike commercial variants, the 54F series undergoes rigorous testing to withstand severe environmental stresses. The octal buffer design allows for efficient management of multiple data lines simultaneously, making it a standard choice for complex digital interfaces in defense and aerospace sectors.

Replacement Considerations

Consult official substitution guides for equivalent military-grade octal buffers. Verify pinout compatibility and electrical characteristics before replacing. Cross-reference with other manufacturers offering similar 54F-series alternatives.