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SN74ALS253 from TI,Texas Instruments

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SN74ALS253

Manufacturer: TI

Dual 1-of-4 Data Selectors/Multiplexers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74ALS253 TI 93 In Stock

Description and Introduction

Dual 1-of-4 Data Selectors/Multiplexers With 3-State Outputs The SN74ALS253 is a dual 4-line to 1-line data selector/multiplexer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Family:** ALS (Advanced Low-Power Schottky)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Propagation Delay (Typical):** 12 ns  
- **Power Dissipation:** 85 mW (max)  
- **Input Current (Max):** ±0.1 mA  
- **Output Current (Max):** ±24 mA (High), 48 mA (Low)  
- **Package Options:** PDIP (Plastic Dual In-Line), SOIC (Small Outline IC)  

### **Descriptions:**  
- The SN74ALS253 consists of two independent 4-input multiplexers with common select inputs and separate enable inputs.  
- Each multiplexer selects one of four data inputs (D0-D3) based on the binary select inputs (S0, S1).  
- The outputs are inverting (active-low) and feature 3-state outputs for bus-oriented applications.  

### **Features:**  
- **Dual 4:1 Multiplexer Configuration**  
- **3-State Outputs** for bus sharing  
- **Common Select Inputs** for both multiplexers  
- **Separate Output Enable Controls** for each multiplexer  
- **Low Power Consumption** compared to standard TTL  
- **Schottky Diode-Clamped Inputs** for improved noise immunity  

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

Application Scenarios & Design Considerations

Dual 1-of-4 Data Selectors/Multiplexers With 3-State Outputs

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