SN74S139AN3

Signal Switches, Multiplexers, Decoders Overview

The SN74S139AN is a dual 2-line to 4-line decoder/demultiplexer from the Texas Instruments 74S series. It features Schottky-clamped logic for high performance and operates on a single power supply within the 4.75V to 5.25V range. The device provides two independent decoding circuits in a 16-pin PDIP package, suitable for standard commercial temperature ranges of 0°C to 70°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 line decoding capability
• Schottky clamping for enhanced switching speed
• Single power supply operation

Signal Switches, Multiplexers, Decoders Applications

• Address decoding for memory arrays
• Demultiplexing data streams
• Control signal routing

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'AN' corresponds to the PDIP package variant when sourcing. Confirm RoHS compliance status as indicated in current TI documentation. Ensure the active production status is validated against the latest Package Option Addendum before finalizing procurement plans.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring fast switching speeds typical of the S-series logic family. Compare against LS or HC variants if lower power consumption or wider voltage tolerance is required instead of maximum speed.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the broader 74S139 family of decoders. It shares functional compatibility with other 74Sxx series devices but offers distinct performance characteristics compared to the slower LS or faster AC/HCT families within the same logical architecture.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74S139AD serves as a surface-mount alternative within the same series.