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SN74AS138DR from TI,Texas Instruments

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SN74AS138DR

Manufacturer: TI

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

Partnumber Manufacturer Quantity Availability
SN74AS138DR TI 700 In Stock

Description and Introduction

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS **Manufacturer:** Texas Instruments (TI)  

**Part Number:** SN74AS138DR  

### **Specifications:**  
- **Logic Type:** Decoder/Demultiplexer  
- **Number of Input Lines:** 3 (A0, A1, A2)  
- **Number of Output Lines:** 8 (Y0-Y7, active-low)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** SOIC-16  
- **Propagation Delay (Max):** 9 ns  
- **Input Current (Max):** 20 mA  
- **Output Current (Max):** 48 mA  
- **Technology Family:** AS (Advanced Schottky)  

### **Descriptions:**  
The SN74AS138DR is a 3-to-8 line decoder/demultiplexer designed for high-speed digital applications. It converts a 3-bit binary input into one of eight mutually exclusive active-low outputs. It also features three enable inputs (two active-low and one active-high) for cascading and control.  

### **Features:**  
- **High-Speed Operation:** Optimized for fast switching.  
- **Low Power Consumption:** Advanced Schottky technology reduces power dissipation.  
- **Multiple Enable Inputs:** Allows for easy expansion (G1, G2A, G2B).  
- **Wide Operating Voltage:** Supports standard TTL levels (5V).  
- **Output Drive Capability:** Can sink up to 48 mA.  
- **SOIC Package:** Compact surface-mount design.  

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

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