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SN74AHCT138PWG4 from TI/BB,Texas Instruments

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SN74AHCT138PWG4

Manufacturer: TI/BB

3-Line to 8-Line Decoder / Demultiplexer 16-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
SN74AHCT138PWG4 TI/BB 218 In Stock

Description and Introduction

3-Line to 8-Line Decoder / Demultiplexer 16-TSSOP -40 to 85 The SN74AHCT138PWG4 is a 3-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:** 4.5V to 5.5V  
- **High-Level Input Voltage (Min):** 2V  
- **Low-Level Input Voltage (Max):** 0.8V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** TSSOP-16  
- **Propagation Delay (Max):** 12 ns at 5V  
- **Current - Output High, Low:** 8mA, 8mA  
- **Mounting Type:** Surface Mount  

### **Descriptions:**  
The SN74AHCT138PWG4 is designed to accept three binary-weighted inputs (A0, A1, A2) and provide eight mutually exclusive active-low outputs (Y0-Y7). It includes three enable inputs (two active-low and one active-high) for cascading and control.  

### **Features:**  
- **3-to-8 Line Decoding:** Converts 3-bit binary inputs to one of eight outputs.  
- **Demultiplexing Capability:** Can be used as a 1-of-8 demultiplexer.  
- **Active-Low Outputs:** Outputs are low when selected.  
- **Multiple Enable Inputs:** Includes G1 (active-high) and G2A, G2B (active-low) for flexible control.  
- **High Noise Immunity:** Typical of AHCT logic family.  
- **Low Power Consumption:** Optimized for battery-operated applications.  
- **Wide Operating Voltage:** Supports standard 5V logic levels.  

This device is commonly used in memory addressing, data routing, and logic expansion applications.

Application Scenarios & Design Considerations

3-Line to 8-Line Decoder / Demultiplexer 16-TSSOP -40 to 85

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