SN74F151BD

Overview

The SN74F151BD is a high-speed silicon-gate CMOS logic device manufactured by Texas Instruments, belonging to the SN74F series. It functions as an 8-to-1 line data selector or multiplexer with complementary outputs. The component utilizes a 16-pin DIP (PDIP) package and operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical specifications include a propagation delay of 9.5 ns and a maximum operating temperature of +70 °C. It features eight data inputs, three address select lines, and an active-low enable input.

Feature Summary

• Provides 8-to-1 data selection capability using three binary address inputs
• Features complementary outputs for both true and inverted data signals
• Includes an active-low enable input for controlling data flow
• Utilizes high-speed silicon-gate CMOS technology

Applications

• Data routing in digital communication systems
• Address decoding in microprocessor-based designs
• Waveform generation circuits
• Parallel-to-serial data conversion

Procurement Notes

Verify the specific suffix 'BD' against the manufacturer's official documentation to confirm the package type and tape/reel specifications. Ensure the order quantity aligns with the manufacturer's minimum packaging requirements. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement.

Selection Notes

Select this component when high-speed switching is required alongside standard TTL-compatible voltage levels. The SN74F series offers faster performance than HC variants but consumes more power. Verify that the system environment remains within the specified 0 °C to +70 °C operating temperature range and that the 4.5 V to 5.5 V supply voltage constraints are met.

Part Context

This part belongs to the SN74F family of high-speed CMOS logic devices. It serves as a direct functional equivalent to other industry-standard 8-to-1 multiplexers like the 74LS151, though with distinct electrical characteristics. The SN74F series is designed for applications requiring faster propagation delays compared to standard LS logic families while maintaining compatibility with existing TTL interfaces.

Replacement Considerations

Compatible substitutes include the SN74LS151 for lower speed requirements and the SN74HC151 for lower power consumption. Cross-reference pinouts and electrical parameters carefully, as voltage ranges and drive strengths differ between F, LS, and HC series components.