74ACT139SCX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT139SCX is a dual 1-of-4 decoder/demultiplexer integrated circuit belonging to the 74ACT logic series. It operates within a supply voltage range of 4.5V to 5.5V and supports surface mount installation in a 16-SOIC package with a width of 3.90mm. The device functions across an operating temperature range of -40°C to +85°C. It features independent circuits for simultaneous decoding or demultiplexing applications, providing high-current outputs capable of sourcing and sinking 24mA each.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual independent 1-of-4 decoder and demultiplexer configurations
• High-output drive capability with 24mA source and sink currents
• Single power supply operation compatible with standard logic levels

Signal Switches, Multiplexers, Decoders Applications

• Address decoding for memory and I/O port selection
• Signal routing and demultiplexing in digital systems
• Control logic for peripheral device activation

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix against official datasheets to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the supplier provides valid traceability documentation matching the manufacturer's part number format.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when dual independent decoding channels are required within a single package. The ACT series offers faster switching speeds compared to standard TTL equivalents while maintaining CMOS low power consumption. Verify that the system voltage remains strictly within the 4.5V to 5.5V operational limits to ensure correct logic threshold performance.

Signal Switches, Multiplexers, Decoders Part Context

This component is part of the widely adopted 74ACT family of logic devices, designed for high-speed digital applications. It serves as a functional equivalent to other industry-standard dual decoder ICs, facilitating design compatibility across various electronic platforms requiring address decoding or data distribution functions.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Cross-reference with other manufacturers' 74ACT139 variants for pin-compatible alternatives. Verify electrical characteristics and package dimensions match before substitution.