**One input NOT ***GATE *

*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’**

**One input transistor NOT ***GATE *

*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: *

*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

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