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4001 IC Quad 2-Input NOR Gate

10.00 EGP

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SKU:5969272422307
CD4001 – an IC with four NOR Gates
CD4001 pinout

The CD4001 is a CMOS chip with four NOR gates. Because each gate has two inputs and it has four gates inside, it’s usually called a Quad 2-Input NOR Gate.

A NOR gate combines the functionality of OR and NOT gates. It gives a HIGH output only when both inputs are LOW; otherwise, the output is LOW.

Pin Overview
Pin Name Pin # Type Description
VDD 14 Power Supply Voltage (+3 to +15V)
GND 7 Power Ground (0V)
A1 to A4 1, 5, 8, 12 Input Inputs A of the four NOR gates
B1 to B4 2, 6, 9, 13 Input Inputs B of the four NOR gates
Q1 to Q4 3, 4, 10, 11 Output Outputs from the four NOR gates
Pin overview for the 4001 IC
What is a NOR gate?

A NOR gate is a logic gate that combines the functionality of both an OR and a NOT gate. It’s often called NOT-OR because it’s the same as an OR gate with a NOT gate on the output.

A NOR gate created from an OR gate and a NOT gate

Simply put, a NOR gate gives a HIGH output only when all the inputs are LOW as shown in the truth table below. Therefore, if you input a HIGH in any of the inputs, the result will automatically become LOW since the results of the OR gate are inverted by the NOT gate.

NOR gate symbol
Input A Input B Output Q
0 0 1
1 0 0
0 1 0
1 1 0
Truth Table for the NOR gate

NOR gates are basic logic gates that can be used for a lot of different logical operations. You’ll often see NOR gates in the construction of flip-flops and latches.

Technical Specifications
Physical
Case/Package DIP
Mount Through Hole
Number of Pins 14
Technical
High Level Output Current -4.2 mA
Logic Function NOR
Low Level Output Current 4.2 mA
Max Operating Temperature 125 °C
Max Supply Voltage 15 V
Min Operating Temperature -55 °C
Min Supply Voltage 3 V
Number of Circuits 4
Number of Elements 4
Number of Gates 4
Number of Inputs 2
Number of Outputs 1
Output Current 8.8 mA
Propagation Delay 250 ns
Quiescent Current 1 µA
Turn-On Delay Time 250 ns
Datasheet

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