74ACT139SJX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT139SJX is a dual 1-of-4 decoder/demultiplexer from the 74ACT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface mount installation in an SOP-16 package. The device functions across an operating temperature range of -40°C to +85°C. This component is classified as obsolete and is no longer manufactured by the producer.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent decoding circuits
• Inverted output configuration
• CMOS technology construction

Signal Switches, Multiplexers, Decoders Applications

• Address decoding for memory systems
• Demultiplexing data streams
• Control signal distribution

Signal Switches, Multiplexers, Decoders Procurement Notes

This part number is officially listed as obsolete and no longer produced. Verification of availability requires checking secondary market distributors or surplus suppliers. Confirm RoHS compliance status through specific datasheet documentation before integration into new designs.

Signal Switches, Multiplexers, Decoders Selection Notes

Designers should evaluate alternative components due to the discontinued status of this specific part. Verify pin compatibility with existing layouts if substituting with similar ACT series decoders. Ensure the replacement maintains the required 4.5V to 5.5V operating voltage and SOP-16 footprint constraints.

Signal Switches, Multiplexers, Decoders Part Context

The 74ACT139SJX belongs to the 74ACT logic family, which provides high-speed CMOS performance compatible with TTL inputs. As a dual decoder, it contains two separate 1-of-4 decoding sections within a single integrated circuit package, allowing for efficient space utilization in digital logic applications requiring multiple address lines.