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SN74F138NSR from TEXAS

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SN74F138NSR

Manufacturer: TEXAS

3-line to 8-line decoder / demultiplexer

Partnumber Manufacturer Quantity Availability
SN74F138NSR TEXAS 45 In Stock

Description and Introduction

3-line to 8-line decoder / demultiplexer The **SN74F138NSR** is a **3-line to 8-line decoder/demultiplexer** manufactured by **Texas Instruments (TI)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Technology Family:** 74F  
- **Function:** 3-to-8 Line Decoder/Demultiplexer  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC (Small Outline Integrated Circuit) - 16-pin  
- **Logic Type:** Decoder/Demultiplexer  
- **Output Type:** Active Low  
- **Propagation Delay (Max):** 7.5 ns at 5V  
- **Input Current (Max):** ±20 mA  
- **Output Current (Max):** ±64 mA  

### **Descriptions:**
- The SN74F138NSR 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 the correct state (G1 high, G2A and G2B low) for proper operation.  
- When disabled, all outputs remain high.  

### **Features:**
- **High-Speed Operation:** Optimized for fast signal processing.  
- **Low Power Consumption:** Efficient power usage for digital applications.  
- **Wide Operating Voltage:** Supports standard 5V logic levels.  
- **Active-Low Outputs:** Simplifies interfacing with other logic circuits.  
- **Multiple Enable Inputs:** Allows for easy cascading and control.  

This device is commonly used in memory addressing, data routing, and digital signal processing applications.  

(Source: Texas Instruments Datasheet)

Application Scenarios & Design Considerations

3-line to 8-line decoder / demultiplexer

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