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SN74LS257N

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

Partnumber Manufacturer Quantity Availability
SN74LS257N 37 In Stock

Description and Introduction

QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The SN74LS257N is a quad 2-line to 1-line data selector/multiplexer manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Channels:** 4 (Quad)  
- **Input Lines per Channel:** 2  
- **Output Lines per Channel:** 1  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Propagation Delay:** Typically 15ns  
- **Output Type:** 3-State (Tri-State)  
- **Package Type:** PDIP (Plastic Dual In-Line Package)  
- **Pin Count:** 16  

### **Descriptions:**  
The SN74LS257N is a high-speed TTL logic device that selects one of two data inputs (A or B) based on a common select line (S). The outputs are in a 3-state configuration, allowing multiple devices to share a common bus.  

### **Features:**  
- **Low Power Consumption:** Typical power dissipation of 32mW  
- **3-State Outputs:** Allows bus-oriented operation  
- **Common Select Input:** Single select line controls all four multiplexers  
- **Schottky-Clamped Inputs:** Ensures high-speed operation  
- **Wide Operating Voltage:** Compatible with standard TTL levels  

This information is sourced from Texas Instruments' official documentation.

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