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SN54AS138J from TI,Texas Instruments

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SN54AS138J

Manufacturer: TI

3-Line To 8-Line Decoders/Demultiplexers

Partnumber Manufacturer Quantity Availability
SN54AS138J TI 50 In Stock

Description and Introduction

3-Line To 8-Line Decoders/Demultiplexers The SN54AS138J 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)  
- **Operating Voltage:** 4.5V to 5.5V  
- **Propagation Delay Time:** Typically 9 ns  
- **Current - Output High, Low:** 15mA, 48mA  
- **Operating Temperature Range:** -55°C to 125°C  
- **Package / Case:** CDIP-16 (Ceramic Dual In-Line Package)  
- **Mounting Type:** Through Hole  

### **Descriptions:**  
The SN54AS138J is a high-speed TTL logic decoder/demultiplexer designed for military and aerospace applications. It converts a 3-bit binary input into one of eight mutually exclusive outputs (active-low). It includes three enable inputs (two active-low and one active-high) for cascading and control.  

### **Features:**  
- High-speed performance with typical propagation delay of 9 ns  
- Low power consumption  
- Three enable inputs for easy expansion  
- Designed for harsh environments (military temperature range)  
- Ceramic package for high reliability  
- Fully compatible with most TTL families  

This device is part of TI’s SN54AS series, which is qualified for extended temperature and reliability requirements.

Application Scenarios & Design Considerations

3-Line To 8-Line Decoders/Demultiplexers

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