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SN74ALS138AD from TI,Texas Instruments

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SN74ALS138AD

Manufacturer: TI

3-Line to 8-Line Decoders/Demultiplexers

Partnumber Manufacturer Quantity Availability
SN74ALS138AD TI 400 In Stock

Description and Introduction

3-Line to 8-Line Decoders/Demultiplexers The SN74ALS138AD is a 3-line to 8-line decoder/demultiplexer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: Decoder/Demultiplexer  
- **Number of Input Lines**: 3  
- **Number of Output Lines**: 8 (active-low)  
- **Supply Voltage Range (VCC)**: 4.5V to 5.5V  
- **Operating Temperature Range**: 0°C to 70°C  
- **Propagation Delay (Max)**: 22 ns  
- **Input Current (Max)**: 1 mA  
- **Output Current (Max)**: 24 mA  
- **Package Type**: SOIC-16  

### **Descriptions:**  
The SN74ALS138AD decodes three binary address inputs (A0, A1, A2) into one of eight mutually exclusive outputs (Y0-Y7). It features three enable inputs (G1, G2A, G2B) that must be in their active states for the decoder to function.  

### **Features:**  
- **Active-Low Outputs**: All outputs are low when selected.  
- **Multiple Enable Inputs**: Allows for easy expansion to larger decoders.  
- **High-Speed Operation**: Optimized for performance in ALS logic family.  
- **Low Power Consumption**: Designed for efficient power usage.  
- **Wide Operating Voltage**: Supports standard TTL levels.  

This device is commonly used in memory decoding, data routing, and other digital logic applications.

Application Scenarios & Design Considerations

3-Line to 8-Line Decoders/Demultiplexers

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