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SN74F244N from TI,Texas Instruments

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SN74F244N

Manufacturer: TI

Octal Buffers/Drivers With 3-State Outputs

Partnumber Manufacturer Quantity Availability
SN74F244N TI 48660 In Stock

Description and Introduction

Octal Buffers/Drivers With 3-State Outputs The SN74F244N is an octal buffer and line driver manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Buffer/Line Driver  
- **Number of Bits:** 8  
- **Output Type:** 3-State  
- **Voltage Supply (VCC):** 4.5V to 5.5V  
- **High-Level Output Current (IOH):** -15 mA  
- **Low-Level Output Current (IOL):** 64 mA  
- **Propagation Delay (tpd):** 5.5 ns (max) at 5V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 20-Pin PDIP (Plastic Dual In-Line Package)  

### **Descriptions:**  
The SN74F244N is designed to improve the driving capability of bus lines or buffer memory address registers. It features two independent 4-bit buffers with 3-state outputs, allowing for bidirectional data flow when enabled.  

### **Features:**  
- **Octal Buffer/Line Driver** with 3-state outputs  
- **High Output Drive:** Capable of driving up to 15 LSTTL loads  
- **Separate Output-Enable Inputs** for each 4-bit buffer  
- **Balanced Propagation Delays** for improved signal integrity  
- **Wide Operating Voltage Range:** 4.5V to 5.5V  
- **Standard TTL Input Logic Levels**  

This device is commonly used in bus-oriented applications where buffering and signal driving are required.

Application Scenarios & Design Considerations

Octal Buffers/Drivers With 3-State Outputs

Alternative Part Number

  • MC74F244N --: Same 74F244 octal buffer/driver function with identical pinout and F-series speed, direct drop-in replacement.
  • 74F244PC --: Equivalent 74F244 octal buffer in DIP-20 package, same logic family and pin configuration.
  • SN74ALS244N --: Same octal buffer function and pinout from the same vendor, slightly slower ALS family but widely available and electrically compatible in most designs.

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