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SN74LS244 from TI,Texas Instruments

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SN74LS244

Manufacturer: TI, TEXAS

Octal Buffer/Line Driver with 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74LS244 TI, TEXAS 149 In Stock

Description and Introduction

Octal Buffer/Line Driver with 3-State Outputs The SN74LS244 is an octal buffer and line driver manufactured by Texas Instruments. Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Logic Family:** LS (Low-Power Schottky)  
- **Number of Channels:** 8 (Octal)  
- **Input Type:** TTL-Compatible  
- **Output Type:** 3-State  
- **Supply Voltage (VCC):** 4.75V to 5.25V (Nominal 5V)  
- **High-Level Output Current (IOH):** -15 mA  
- **Low-Level Output Current (IOL):** 24 mA  
- **Propagation Delay (tpd):** 12 ns (Typical)  
- **Operating Temperature Range:** 0°C to 70°C (Commercial Grade)  

### **Descriptions:**  
- The SN74LS244 is a non-inverting octal buffer and line driver designed to improve bus driving capability.  
- It features two independent 4-bit buffers with 3-state outputs controlled by separate output-enable (OE) inputs.  
- The device is commonly used in bus-oriented applications where buffering and signal isolation are required.  

### **Features:**  
- **Octal Buffer/Line Driver with 3-State Outputs**  
- **High-Current Outputs for Driving Bus Lines**  
- **TTL-Compatible Inputs**  
- **Separate Output Enable Controls for Each 4-Bit Section**  
- **Low Power Consumption (LS Technology)**  
- **Wide Operating Voltage Range (4.75V to 5.25V)**  
- **Improved Noise Immunity**  

For detailed electrical characteristics and pin configurations, refer to the official Texas Instruments datasheet.

Application Scenarios & Design Considerations

Octal Buffer/Line Driver with 3-State Outputs

Alternative Part Number

  • DM74LS244N --: Pin-compatible octal buffer/line driver in the same LS TTL family with equivalent drive and propagation characteristics.
  • 74LS244N --: Standard 74LS244 octal buffer in DIP package, functionally and pin-for-pin interchangeable with the TI device.
  • MC74LS244N --: Legacy LS TTL octal buffer with identical logic function and pinout, suitable as a drop-in replacement.
  • 74LS244 --: Standard 74LS244 octal buffer with identical pinout and logic function, suitable as a functional replacement in most designs.
  • CD74HCT244E --: HCT-family octal buffer with TTL-compatible inputs and same pinout; offers lower power consumption and can replace the LS244 where speed margins allow.

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