Logic NOT Gate Tutorial

A NOT gate accepts one input signal (0 or 1) and returns the complementary (opposite) signal as an output.

Fig-1: Logic NOT Gate symbol

One input NOT GATE 

A NOT gate may be a one-input, one-output logic circuit whose output is often the complement of the input. That is, a coffee input produces a HIGH output and the other way around. once understood for a positive logic system, a logic ‘0’ at the input produces a logic ‘1’ at the output, and the other way around. it’s conjointly referred to as a ‘complementing circuit’ or associate ‘inverting circuit’. Fig:1 shows the circuit image and also the truth table.

Truth Table: could be a chart that lists the input condition on the left and therefore the gate’s output response on the proper. The table shows that the NOT associations respond at the output taking into consideration the inverse of the signal applied to the input.

Y= A’

Fig-2: one input NOT gate

Fig-3: one input NOT gate

One input transistor NOT GATE 

A simple 2-input logic NOT gate will be made victimization associate RTL Resistor-transistor switches as shown below with the input connected on to the junction transistor base. The junction transistor should be saturated “ON” for associate inverted output “OFF” at Y.

Commonly available digital logic NOT gate IC Number:

TTL Logic AND Gate

74LS1004 Hex Inverting Drivers

H74LS04 Hex Inverting IC Pin number 14

TTL Logic AND Gate

CD4069 Hex Inverting NOT Gate

CD4009 Hex Inverting

NOT Gate Tutorial watch the video