54F151/B2A

Overview

The Rochester Electronics LLC 54F151/B2A is a high-speed silicon gate logic device functioning as an 8-line-to-1-line data selector or multiplexer. It operates within a supply voltage range of 4.5 V to 5.5 V and supports propagation delays down to 10 ns. The component utilizes standard TTL-compatible inputs and features a tri-state output, enabling efficient bus-oriented applications. Designed for robust performance in demanding environments, it maintains signal integrity across the full military temperature range of -55 °C to +125 °C.

Feature Summary

• Provides eight selectable data channels with a single output line
• Features tri-state output capability for bus-driven systems
• Supports high-speed switching with low propagation delay
• Ensures reliable operation across extended military temperature ranges

Applications

• Data routing in industrial control systems
• Signal selection in telecommunications equipment
• Address decoding in military-grade computing architectures
• High-speed data acquisition modules

Procurement Notes

Verify the specific suffix designation against original manufacturer documentation to confirm exact electrical tolerances and package variations. Ensure compatibility with existing system voltage levels and thermal management requirements before integration. Confirm that the component meets all necessary radiation hardness and reliability standards required for the intended operational environment.

Selection Notes

Select this component when an 8-channel multiplexer with tri-state output is required for high-speed digital logic applications. It is suitable for designs needing wide operating temperature stability and fast switching speeds. Consider alternative packages if pinout compatibility differs from current board layouts. Verify input voltage thresholds match the driving circuitry specifications.

Part Context

This part belongs to the 54F series of high-speed TTL logic devices, originally designed for aerospace and military applications. Rochester Electronics provides lifecycle support for these legacy components, ensuring availability for long-term production runs. The 54F series is known for its superior speed-performance power product compared to standard TTL counterparts.

Replacement Considerations

Direct replacements include the SN54F151 or equivalent 54F-series multiplexers from other manufacturers. Verify pin compatibility and electrical characteristics before substitution. Ensure the replacement device meets the same radiation hardness and temperature rating requirements.