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SN74LS20 from TI,Texas Instruments

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SN74LS20

Manufacturer: TI

Dual 4-input positive-NAND gates

Partnumber Manufacturer Quantity Availability
SN74LS20 TI 102 In Stock

Description and Introduction

Dual 4-input positive-NAND gates The SN74LS20 is a dual 4-input positive-NAND gate manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:  

### **Specifications:**  
- **Logic Type:** NAND Gate  
- **Number of Circuits:** 2 (Dual)  
- **Number of Inputs per Gate:** 4  
- **Supply Voltage (VCC):** 4.75V to 5.25V (Standard 5V operation)  
- **Propagation Delay (Max):** 15 ns at 5V  
- **Low-Level Output Current (IOL):** 8 mA  
- **High-Level Output Current (IOH):** -0.4 mA  
- **Operating Temperature Range:** 0°C to 70°C (Commercial grade)  
- **Package Options:** 14-pin PDIP, SOIC, TSSOP  

### **Description:**  
The SN74LS20 is part of the LS (Low-Power Schottky) family, providing high-speed performance with low power consumption. It contains two independent 4-input NAND gates, each performing the Boolean function Y = (A • B • C • D)'.  

### **Features:**  
- **Low Power Consumption:** Typical power dissipation of 2 mW per gate  
- **Schottky Clamped:** Improves switching speed  
- **Wide Operating Voltage:** Compatible with TTL levels  
- **High Noise Immunity:** Standard for LS-TTL logic  
- **Fanout:** Supports up to 10 LS-TTL loads  

This device is commonly used in digital logic circuits, signal processing, and control systems.

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