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SN74LS26 from TI,Texas Instruments

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SN74LS26

Manufacturer: TI

Quad 2-input high-voltage interface positive-NAND gates

Partnumber Manufacturer Quantity Availability
SN74LS26 TI 385 In Stock

Description and Introduction

Quad 2-input high-voltage interface positive-NAND gates The SN74LS26 is a quad 2-input positive-NAND buffer manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** NAND Gate  
- **Number of Gates:** 4  
- **Inputs per Gate:** 2  
- **Supply Voltage (VCC):** 4.75V to 5.25V  
- **Propagation Delay (Max):** 15 ns  
- **Output Current (High):** -0.4 mA  
- **Output Current (Low):** 8 mA  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package Options:** PDIP, SOIC  

### **Description:**  
The SN74LS26 is a high-speed TTL logic device containing four independent 2-input NAND buffers with open-collector outputs. It is designed for use in digital systems requiring buffering and logic operations.  

### **Features:**  
- Open-collector outputs for wired-OR applications  
- High noise immunity  
- Low power consumption  
- Standard TTL switching voltages  
- Compatible with most TTL families  

This device is commonly used in logic circuits, signal buffering, and interfacing applications.

Application Scenarios & Design Considerations

Quad 2-input high-voltage interface positive-NAND gates

Alternative Part Number

  • DM74LS26N --: Direct quad 2-input NAND gate with open-collector outputs in the same LS TTL family, pin-compatible DIP package and widely available as a drop-in replacement.
  • MC74LS26N --: Equivalent 74LS26 open-collector NAND gate from a different manufacturer series, same logic function, pinout and TTL voltage levels.
  • 74LS38 --: Quad 2-input NAND buffer with open-collector outputs; functionally similar open-collector NAND logic and often used as a substitute when the exact LS26 is unavailable, though drive ratings should be verified.

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