74LS20 Dual 4 input NAND Gate IC (7420) DIP 14 Package

74LS20 Dual 4 input NAND Gate IC (7420) DIP 14 Package

The 74LS20 is a Dual 4-Input NAND Gate IC from the 74LS (Low Power Schottky TTL) logic family.
Each gate performs the NAND (NOT-AND) logic function on four input signals — meaning the output goes LOW only when all inputs are HIGH.

The device provides two independent 4-input NAND gates, making it ideal for high-input logic conditions where multiple signals need to be combined logically.
It operates with high speed, low power consumption, and excellent noise immunity, typical of TTL LS logic.

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Features:- 

• • Two Independent NAND Gates
• • Standard Pin Configuration
• • Fast Switching Times
• • Operating Temperature up to 70°C
• • Standard TTL Switching Voltages

Specifications:-

Features Summary

• Dual 4-input NAND gates
• Fast switching times
• Compatible with all standard TTL logic ICs
• Ideal for combining multiple logic signals
• Low static power dissipation
• High fan-out capability

Applications

• Digital logic circuits
• Signal conditioning and control
• Logic combination and inversion
• Timing and control logic systems
• Data selection and enable circuits
• Microprocessor-based logic building blocks
• Decoder or multiplexer design

74ls20-ic-datasheet