74F139PC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74F139PC is a high-speed dual 1-of-4 decoder/demultiplexer housed in a 16-Lead Plastic Dual-In-Line Package (PDIP). It contains two independent decoders, each accepting two binary weighted inputs and providing four mutually exclusive active LOW outputs. The device operates within a supply voltage range of +4.5V to +5.5V and supports an ambient temperature range of 0°C to +70°C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Multifunction capability with two completely independent 1-of-4 decoders
• Active LOW mutually exclusive outputs for precise signal routing
• Each half generates all four minterms of two variables

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in memory systems
• Data demultiplexing applications
• Function generation replacing multiple gate functions

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the package type matches the specific application requirements, as this component is available in SOIC and SOP variants alongside the PDIP option. Confirm that the operating temperature range aligns with the intended environmental conditions. Ensure compatibility with existing logic levels and power supply constraints before finalizing procurement decisions.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a high-speed dual decoder or demultiplexer is required for digital logic circuits. Consider the PDIP package for through-hole mounting needs. Evaluate the propagation delay specifications against system timing requirements. Verify that the active LOW output configuration suits the downstream logic inputs.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74F series of logic integrated circuits, known for high-speed performance. It is manufactured by onsemi, formerly Fairchild Semiconductor. The device is designed for general-purpose digital logic applications requiring efficient address decoding or data distribution.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for equivalent parts from other manufacturers offering the same 74F logic family specifications. Verify pinout compatibility and electrical characteristics such as propagation delay and output drive current. Ensure the replacement part meets the same packaging and temperature requirements.