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SN74HC251N from TEXAS

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SN74HC251N

Manufacturer: TEXAS

Data Selectors/Multiplexers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74HC251N TEXAS 51 In Stock

Description and Introduction

Data Selectors/Multiplexers With 3-State Outputs The **SN74HC251N** is a high-speed CMOS logic 8-input multiplexer manufactured by **Texas Instruments (TI)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Logic Type:** 8-Input Multiplexer  
- **Number of Channels:** 1  
- **Number of Inputs:** 8  
- **Supply Voltage Range:** 2V to 6V  
- **High-Level Output Current:** -5.2 mA  
- **Low-Level Output Current:** 5.2 mA  
- **Propagation Delay Time:** 14 ns (typical at 5V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** PDIP-16  

### **Descriptions:**
- The **SN74HC251N** is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) 8-input digital multiplexer with 3-state outputs.  
- It selects one of eight data inputs (D0-D7) based on the three select lines (A, B, C) and routes it to the output (Y).  
- The output can be enabled or disabled using the Output Enable (OE) pin.  
- It operates over a wide voltage range (2V to 6V) and is compatible with TTL (Transistor-Transistor Logic) levels.  

### **Features:**
- **Wide Operating Voltage Range:** 2V to 6V  
- **Low Power Consumption:** CMOS technology ensures minimal power dissipation.  
- **3-State Output:** Allows for bus-oriented applications.  
- **High Noise Immunity:** Typical of CMOS devices.  
- **Balanced Propagation Delays:** Ensures reliable performance in high-speed applications.  
- **TTL-Compatible Inputs:** Can interface with TTL logic levels.  

This device is commonly used in data routing, signal selection, and digital logic applications.

Application Scenarios & Design Considerations

Data Selectors/Multiplexers With 3-State Outputs

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