View source for 4001 Quad 2 input NOR Gate

[[File:4001.JPG|300px|right]]
[[File:4001norgate.jpg|300px|right]]
This chip contains four '''(QUAD) [http://en.wikipedia.org/wiki/NOR_gate NOR gates'''], each with 2 inputs, which can operate individually or in combination.

'''Uses:'''

NOR logic gate. Found on electronic resource boards - Short Time Delay 1, Flip Flop 1, Set Reset Flip Flop, Motor Speed Control

'''In normal use:'''

Pin 14 ''(+3 to 15v)'' is connected to the positive (+ve) supply.
Pin 7 is connected to the negative ''(-ve)'' supply.
All unused inputs should be connected to the positive supply.
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<span style="color: green">'''Note:'''
The output signal is low powered and normally needs amplification to drive output devices.
</span>
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Each logic gate works as shown in the truth table.
{| class="wikitable" border="1" "center"
|-
! '''Input 1''' ''(eg pin 1)''
! '''Input 2''' ''(eg pin 2)''
! '''Output''' ''(eg pin 3)''
|-
| 0
| 0
| 1
|-
| 0
| 1
| 0
|-
| 1
| 0
| 0
|-
| 1
| 1
| 0
|}
Connecting two inputs of a gate together ''(eg 1 & 2)'' makes the gate act like a [http://en.wikipedia.org/wiki/Inverter_%28logic_gate%29 '''NOT gate'''] or [http://en.wikipedia.org/wiki/Inverter_%28logic_gate%29 '''INVERTER'''].


[[Category:Secondary]]
[[Category:Electronics Components]]