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SN74AS244ANSR from TI,Texas Instruments

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SN74AS244ANSR

Manufacturer: TI, TEXAS

Octal Buffers/Drivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74AS244ANSR TI, TEXAS 5053 In Stock

Description and Introduction

Octal Buffers/Drivers With 3-State Outputs The SN74AS244ANSR is an octal buffer and line driver manufactured by Texas Instruments. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Texas Instruments  
- **Type:** Octal Buffer/Line Driver  
- **Technology Family:** AS (Advanced Schottky)  
- **Number of Channels:** 8  
- **Logic Type:** Non-Inverting  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Output Type:** 3-State  
- **Propagation Delay Time (Max):** 7.5 ns  
- **High-Level Output Current:** -15 mA  
- **Low-Level Output Current:** 48 mA  
- **Package:** SOIC-20 (NSR suffix)  

### **Descriptions:**  
The SN74AS244ANSR is an octal buffer and line driver designed for bus-oriented applications. It features 3-state outputs that can be controlled by two active-low output enable (OE) inputs, allowing for high-impedance states when disabled.  

### **Features:**  
- **Octal Buffer/Driver:** Provides eight non-inverting buffers.  
- **3-State Outputs:** Allows multiple devices to share a common bus.  
- **High Drive Capability:** Supports high-current outputs.  
- **Advanced Schottky Technology:** Ensures fast switching speeds.  
- **Wide Operating Voltage:** Compatible with standard 5V TTL systems.  
- **ESD Protection:** Helps prevent damage from electrostatic discharge.  

This device is commonly used in digital systems for signal buffering and driving high-capacitance loads.

Application Scenarios & Design Considerations

Octal Buffers/Drivers With 3-State Outputs

Alternative Part Number

  • 74F244PC --: Octal buffer/line driver with 3-state outputs in the same function class; faster F-series logic and widely available as a drop-in functional replacement.
  • MC74ACT244ADWR2G --: Octal buffer/line driver with 3-state outputs, TTL-compatible inputs, and similar drive capability; different series naming makes it easy to distinguish from the source.
  • CD74HCT244E --: Octal buffer/line driver with 3-state outputs from TI's HCT family; TTL input compatibility and equivalent logic function, though pinout/package should be verified.
  • MC74ACT244DWR2G --: ACT-series octal buffer/line driver with 3-state outputs, TTL-compatible inputs, and similar propagation characteristics; available in SOIC-20 wide-body like the original.

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