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SN54ALS157A from TI,Texas Instruments

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SN54ALS157A

Manufacturer: TI

Quadruple 1-Of-2 Data Selectors/Multiplexers

Partnumber Manufacturer Quantity Availability
SN54ALS157A TI 3 In Stock

Description and Introduction

Quadruple 1-Of-2 Data Selectors/Multiplexers The SN54ALS157A is a quadruple 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Data Selector/Multiplexer  
- **Number of Channels:** 4  
- **Input Lines per Channel:** 2  
- **Output Lines per Channel:** 1  
- **Supply Voltage Range (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military-grade)  
- **Propagation Delay:** Typically 12ns (at 5V)  
- **Input Current (Max):** 1µA  
- **Output Current (Max):** 24mA  
- **Package Type:** Ceramic DIP (Dual In-line Package)  

### **Descriptions:**  
The SN54ALS157A is a high-speed, low-power Schottky TTL logic device designed for military and industrial applications. It selects one of two data inputs (A or B) based on the select (S) input and routes it to the output (Y).  

### **Features:**  
- **High-Speed Operation:** Low propagation delay for fast switching.  
- **Low Power Consumption:** ALS technology ensures efficient power usage.  
- **Wide Operating Temperature Range:** Suitable for harsh environments.  
- **Common Select Input:** Single select line controls all four multiplexers.  
- **Schottky Clamped:** Improves switching performance.  
- **Balanced Propagation Delays:** Ensures consistent timing across channels.  
- **Strobe (Enable) Input:** Allows output control for system flexibility.  

This device is commonly used in data routing, signal gating, and bus selection applications.

Application Scenarios & Design Considerations

Quadruple 1-Of-2 Data Selectors/Multiplexers

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