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SN74ALS257AN from TEXAS

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SN74ALS257AN

Manufacturer: TEXAS

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ALS257AN TEXAS 330 In Stock

Description and Introduction

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs The SN74ALS257AN is a quad 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Type:** Data Selector/Multiplexer  
- **Technology:** ALS (Advanced Low-Power Schottky)  
- **Package:** 16-pin PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Propagation Delay:** 12ns (typical)  
- **Input Current (High):** 20µA (max)  
- **Input Current (Low):** -0.1mA (max)  
- **Output Current (High):** -0.4mA (max)  
- **Output Current (Low):** 8mA (max)  
- **Power Dissipation:** 55mW (typical)  

### **Description:**  
The SN74ALS257AN is a high-speed quad 2-to-1 multiplexer with 3-state outputs. It selects one of two data sources (A or B) based on the select (S) input and provides non-inverted outputs. The outputs can be placed in a high-impedance state using the output enable (OE) input, making it suitable for bus-oriented applications.  

### **Features:**  
- **Quad 2-to-1 Multiplexer:** Four independent multiplexers in a single package.  
- **3-State Outputs:** Allows for bus sharing and reduces system loading.  
- **Non-Inverting Outputs:** Maintains data polarity.  
- **Low Power Consumption:** ALS technology ensures efficient power usage.  
- **Wide Operating Voltage:** Compatible with standard 5V logic systems.  
- **High-Speed Operation:** Suitable for high-performance digital systems.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

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