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SN74ALS257ADR from TI,Texas Instruments

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SN74ALS257ADR

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
SN74ALS257ADR TI 2500 In Stock

Description and Introduction

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs The SN74ALS257ADR is a quadruple 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Data Selector/Multiplexer  
- **Number of Circuits:** 4  
- **Number of Inputs:** 2  
- **Output Type:** 3-State  
- **Voltage Supply:** 4.5V to 5.5V  
- **Operating Temperature:** 0°C to 70°C  
- **Package / Case:** SOIC-16  
- **Mounting Type:** Surface Mount  
- **Propagation Delay Time:** 12ns (typical)  
- **High-Level Output Current:** -15mA  
- **Low-Level Output Current:** 24mA  

### **Descriptions:**  
The SN74ALS257ADR is a high-speed TTL logic device that selects one of two data sources based on the select input. It features 3-state outputs for bus-oriented applications.  

### **Features:**  
- 4-bit 2-to-1 multiplexer with 3-state outputs  
- Common select and output enable inputs  
- Buffered inputs for reduced loading  
- TTL-compatible inputs and outputs  
- Designed for high-speed operation  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs
Partnumber Manufacturer Quantity Availability
SN74ALS257ADR TEXAS 1852 In Stock

Description and Introduction

Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs The SN74ALS257ADR is a quad 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Technology Family:** ALS (Advanced Low-Power Schottky)
- **Supply Voltage Range:** 4.5V to 5.5V
- **Operating Temperature Range:** 0°C to 70°C
- **Package Type:** SOIC (Small Outline Integrated Circuit)
- **Package Pins:** 16
- **Logic Type:** Multiplexer
- **Number of Circuits:** 4
- **Propagation Delay Time:** 12ns (typical)
- **Output Type:** 3-State
- **Input Type:** TTL-Compatible

### **Descriptions:**
- The SN74ALS257ADR is a high-speed quad 2-line to 1-line multiplexer with 3-state outputs.
- It selects one of two data sources per output based on the select input.
- Designed for bus-oriented applications, allowing multiple outputs to be connected to a common bus.
- Features TTL-compatible inputs and outputs for easy integration with other logic families.

### **Features:**
- **Four Independent 2:1 Multiplexers:** Each with a common select input.
- **3-State Outputs:** Allows direct connection to a bus or shared line.
- **Low Power Consumption:** ALS technology ensures reduced power usage.
- **High-Speed Operation:** Typical propagation delay of 12ns.
- **Wide Operating Voltage Range:** Supports 4.5V to 5.5V operation.
- **TTL-Compatible Inputs:** Ensures compatibility with standard TTL logic levels.
- **ESD Protection:** Provides improved reliability in harsh environments.

This device is commonly used in digital systems for data routing, signal selection, and bus interfacing applications.

Application Scenarios & Design Considerations

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

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