7700401EA

Signal Switches, Multiplexers, Decoders Overview

The Texas Instruments 7700401EA is a dual 2-line to 4-line decoder/demultiplexer from the SN54S139 series. It features two independent decoders, each with two address inputs and four active-low outputs. The device operates within a military-grade temperature range of -55°C to 125°C and utilizes a 16-pin CDIP package. Key electrical specifications include a maximum output low current (I_ol) of 0.02 A and a load capacitance (CL) of 15 pF.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 2-to-4 decoding functionality
• Active-low output states for signal demultiplexing
• Military-grade operational temperature capability

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in military computing systems
• Signal routing in aerospace data buses
• Demultiplexing control lines in harsh environment electronics

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific package variant and manufacturing date code upon order confirmation. Ensure that the procurement channel provides traceability documentation suitable for defense or aerospace supply chains. Confirm compliance with relevant military standards required for the intended application environment before finalizing purchase agreements.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding is required in high-reliability environments. The SN54S139 architecture supports complex address mapping tasks. Consider the 16-pin CDIP form factor for through-hole mounting requirements in ruggedized chassis designs where surface mount options are unsuitable.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN54S139 family of logic circuits designed for high-speed digital applications. It serves as a foundational building block for address decoding networks in legacy and specialized military electronic systems. The device complements other SN54 series components by providing reliable signal distribution under extreme thermal conditions.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Ensure any substitute maintains identical pinout compatibility and meets the same military temperature specifications.