Listing details
Review the original listing for condition, specifications and included components.
Motorola SN74LS139N Dual 2-to-4 Line Decoder / Demultiplexer
Up for sale are genuine, high-quality, new old stock (NOS) Motorola SN74LS139N logic integrated circuits. These high-speed Dual 1-of-4 Decoder/Demultiplexers are fabricated using the proven low-power Schottky barrier diode process.
Perfect for legacy computing repairs, vintage video game console maintenance, custom 8-bit hardware builds, breadboard prototyping, or replacement logic components in industrial automation systems.
Available in tiered lot options of 5, 10, 20, 50, or 100 pieces. Simply select your desired pack quantity from the drop-down selection menu above.
Deep Technical Specifications
| Manufacturer | Motorola |
|---|---|
| Manufacturer Part Number (MPN) | SN74LS139N |
| Product Line / Logic Family | 74LS Series (Low-Power Schottky TTL) |
| Device Function | Dual 2-to-4 Line Decoder / Demultiplexer |
| Package / Case | DIP-16 (Dual In-Line Plastic, Through-Hole) |
| Independent Circuits | 2 (Dual identical sections) |
| Operating Supply Voltage ($V_{CC}$) | 4.75V Min | 5.0V Typ | 5.25V Max |
| Typical Propagation Delay ($t_{pd}$) | 13 ns to 22 ns |
| Power Dissipation ($P_{D}$) | Typical 34 mW per package |
| Output Type | Digital (Active-LOW) |
| High-Level Output Current ($I_{OH}$) | -0.4 mA Max |
| Low-Level Output Current ($I_{OL}$) | 8.0 mA Max |
| Operating Temperature Range | 0°C to +70°C |
| Item Condition | New Old Stock (NOS) / Unused Surplus |
Key Features & Broad Compatibility
- Two Completely Independent Decoders: Each individual section accepts two binary-weighted inputs and provides four mutually exclusive active-LOW outputs.
- Demultiplexing Capability: Features an active-LOW Enable input line ($G$), allowing the IC to function seamlessly as a data input for 4-output demultiplexer designs.
- Robust Signal Integrity: Incorporates Schottky clamping to suppress internal ringing and maintain sharp logic transitions.
- Excellent Legacy Support: Fully pin-compatible, interchangeable, and backward-compatible with standard 7400-series TTL logic boards, legacy microprocessors (Z80, 6502, 68000 systems), and all standard 16-pin IC sockets.
Shipping & Packaging Details
- ICs are securely packed and processed inside dedicated anti-static protective tubes or ESD shielding bags to safeguard delicate pins and prevent static discharge damage.
- Orders are packed carefully and shipped quickly from our domestic warehouse facility.