74ACT139PC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT139PC 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 a 16-PDIP package. The device functions across an extended temperature range from -40°C to +85°C, ensuring reliable performance in industrial environments.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent decoding circuits for signal routing
• High-current output capability for direct load driving
• CMOS technology with TTL-compatible inputs

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor systems
• Data distribution in digital communication interfaces
• Memory chip select generation

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'PC' confirms the plastic DIP package variant rather than SOIC or other formats. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the component meets the required operating temperature specifications for the target application environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part when dual 1-of-4 decoding is required with high drive strength. The ACT series offers faster switching speeds compared to standard AC variants while maintaining CMOS power efficiency. Verify pin compatibility if replacing legacy components in existing PCB layouts.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the 74ACT139 series, which includes similar decoders like the SCX variant in SOIC packaging. It serves as a fundamental building block for address decoding and data demultiplexing tasks in digital logic designs requiring robust signal integrity and wide operating voltage tolerance.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with 74F139PC for faster switching but note differences in power consumption. Check 74AC139PC for lower power options but verify speed requirements. Ensure package dimensions match the footprint if substituting.