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SN74F138DR from TI,Texas Instruments

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SN74F138DR

Manufacturer: TI

3-line to 8-line decoder / demultiplexer

Partnumber Manufacturer Quantity Availability
SN74F138DR TI 2500 In Stock

Description and Introduction

3-line to 8-line decoder / demultiplexer The SN74F138DR is a 3-line to 8-line decoder/demultiplexer manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Logic Type**: Decoder/Demultiplexer  
- **Number of Input Lines**: 3 (A0, A1, A2)  
- **Number of Output Lines**: 8 (active-low Y0-Y7)  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: 0°C to 70°C  
- **Package Type**: SOIC-16  
- **Propagation Delay Time**: 6.5 ns (typical)  
- **Input Current (Max)**: ±1 mA  
- **Output Current (Max)**: ±12 mA  

### **Features:**  
- Designed for high-speed operation  
- Three enable inputs (two active-low, one active-high) for flexible control  
- Demultiplexing capability  
- Low power consumption  
- TTL-compatible inputs  

### **Description:**  
The SN74F138DR decodes three binary address inputs (A0, A1, A2) into one of eight mutually exclusive outputs (Y0-Y7). The outputs are active-low and controlled by enable inputs (G1, G2A, G2B). It can also function as a demultiplexer when G1 is used as the data input.  

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

Application Scenarios & Design Considerations

3-line to 8-line decoder / demultiplexer

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