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SN74LS257BN

Quad 2-input multiplexer with 3-state outputs

Partnumber Manufacturer Quantity Availability
SN74LS257BN 5500 In Stock

Description and Introduction

Quad 2-input multiplexer with 3-state outputs The SN74LS257BN is a quad 2-line to 1-line data selector/multiplexer with 3-state outputs, manufactured by Texas Instruments.  

### **Key Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Function:** Quad 2:1 Multiplexer  
- **Number of Channels:** 4  
- **Output Type:** 3-State (High-Impedance when disabled)  
- **Supply Voltage (VCC):** 4.75V to 5.25V (Standard 5V operation)  
- **Propagation Delay:** Typically 15ns  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Type:** PDIP-16 (Plastic Dual In-Line Package, 16 pins)  

### **Descriptions and Features:**  
- **Functionality:** Selects one of two data inputs (A or B) per channel based on the select (S) input.  
- **3-State Outputs:** Allows for bus-oriented applications by enabling/disabling outputs.  
- **Common Select Input:** A single select line controls all four multiplexers.  
- **Low Power Consumption:** Typical power dissipation of 32mW.  
- **TTL-Compatible Inputs:** Works with standard TTL logic levels.  
- **Applications:** Data routing, bus selection, and signal gating in digital systems.  

This device is commonly used in digital circuits for data selection and multiplexing tasks.

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