54F151ADC

Overview

The 54F151ADC is an 8-to-1 data selector/multiplexer from the F/Fast series, manufactured by National Semiconductor. It features eight data input channels and two select inputs for routing specific data lines. The device operates within a standard TTL logic family and is housed in a 16-pin CDIP package with a 0.300-inch (7.62mm) width. It provides active-low outputs and includes strobe functionality for data control.

Feature Summary

• Provides 8-to-1 multiplexing capability using two select inputs
• Features active-low output configuration for direct interface compatibility
• Includes strobe input to enable or disable data transmission

Applications

• Data routing in digital logic systems
• Address decoding circuits
• Sequential logic design applications

Procurement Notes

Verify the manufacturer origin as National Semiconductor, noting that Texas Instruments acquired the semiconductor division. Confirm the package type is 16-CDIP and ensure the part number suffix matches the exact specification. Cross-reference datasheets to confirm electrical characteristics align with system requirements before procurement.

Selection Notes

Select this component when an 8-channel multiplexer with TTL-compatible levels is required. Ensure the application supports the F/Fast series speed characteristics. Verify that the 16-CDIP package fits the available board space and mounting constraints. Check if active-low outputs meet the downstream logic requirements.

Part Context

This component belongs to the 54F/74F logic families, known for high-speed performance compared to standard TTL. The 54F151 variant specifically addresses multiplexing needs in military-grade (54F) or commercial-grade (74F) environments, offering reliable signal selection in complex digital architectures.

Replacement Considerations

Compatible substitutes include the 74F151ADC and 54LS151ADC. Verify pinout compatibility and electrical specifications such as propagation delay and output current capabilities before substitution.