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SN74F138N

3-line to 8-line decoder / demultiplexer

Partnumber Manufacturer Quantity Availability
SN74F138N 49 In Stock

Description and Introduction

3-line to 8-line decoder / demultiplexer The SN74F138N is a 3-line to 8-line decoder/demultiplexer manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Type**: Decoder/Demultiplexer  
- **Number of Input Lines**: 3  
- **Number of Output Lines**: 8 (active-low)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: 0°C to 70°C  
- **Package Type**: PDIP (Plastic Dual In-line Package)  
- **Pin Count**: 16  
- **Propagation Delay**: Typically 6.5 ns at 5V  
- **Current - Output High, Low**: 1mA, 20mA  

### **Description:**  
The SN74F138N decodes three binary address inputs (A0, A1, A2) into one of eight mutually exclusive outputs (Y0-Y7). It features three enable inputs (two active-low and one active-high) to simplify cascading and reduce the need for external gates.  

### **Features:**  
- Decodes 3 binary inputs to 8 outputs  
- Active-low outputs  
- Multiple enable inputs for easy expansion  
- Optimized for 5V operation  
- Fast switching speed  
- Standard 16-pin DIP package  

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

Would you like additional details on any specific parameter?

Application Scenarios & Design Considerations

3-line to 8-line decoder / demultiplexer

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