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SN74LS139ML1 from MOTOROLA

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SN74LS139ML1

Manufacturer: MOTOROLA, MOT

Dual 1-OF-4 Decoder/ Demultiplexer

Partnumber Manufacturer Quantity Availability
SN74LS139ML1 MOTOROLA, MOT 1735 In Stock

Description and Introduction

Dual 1-OF-4 Decoder/ Demultiplexer The SN74LS139ML1 is a dual 2-line to 4-line decoder/demultiplexer manufactured by **MOT (Motorola)**.  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Function:** Dual 2-to-4 Line Decoder/Demultiplexer  
- **Operating Voltage:** 4.75V to 5.25V  
- **Propagation Delay:** Typically 21 ns  
- **Power Dissipation:** 32 mW (typical)  
- **Input Current (High):** 20 µA (max)  
- **Input Current (Low):** -0.36 mA (max)  
- **Output Current (High):** -0.4 mA (max)  
- **Output Current (Low):** 8 mA (max)  
- **Package:** SOIC-16  

### **Descriptions and Features:**  
- **Dual Decoder:** Contains two independent 2-to-4 decoders in a single package.  
- **Demultiplexing Capability:** Can function as a 1-to-4 demultiplexer with an enable input.  
- **Active-Low Outputs:** Outputs are active low for decoder operation.  
- **Schottky Clamped:** Improves switching speed and reduces power consumption.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

This device is commonly used in address decoding, memory selection, and data routing applications.

Application Scenarios & Design Considerations

Dual 1-OF-4 Decoder/ Demultiplexer

Alternative Part Number

  • DM74LS139N --: Same 74LS139 dual 2-to-4 line decoder/demultiplexer function with compatible pinout and logic levels, widely available from a different manufacturer and series.
  • SN74LS139AN --: Direct functional equivalent dual 2-to-4 decoder in the 74LS family with standard DIP pinout, from a different vendor and naming series.
  • MC74LS139N --: Equivalent 74LS139 decoder/demultiplexer in DIP package, offered under the ON Semiconductor/Motorola-derived MC prefix, providing a distinct part naming from the source.
  • CD74LS139E --: Equivalent 74LS139 decoder in TI's CD series prefix, electrically compatible with the original logic function.

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