CD4002 Dual 4-Input NOR Gate

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CD4002 belongs to the CD4000 IC series. CD4002 consists of two monolithic 4 – input NOR gates made by using the complementary MOS (CMOS) technology, integrated with p-type and n-type enhancement mode transistors. The IC is always available in a 14 – pin hermetically sealed dual in line package (DIP). The IC offers a wide array of working voltages, numerous working conditions, and directly interfaces with CMOS, NMOS, and TTL devices. CD4002 offers features such as ESD barring and high noise immunity. Each output is protected against static damage by using clamping diodes.

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What is NOR Gate?

An OR gate followed by a NOT gate in a cascade is called a NOR gate. The inclusive NOR (Not – OR) gate has an output that is normally at logic level “1” and only goes “LOW” to a logic level “0” when any of its inputs are at logic level “1”. The Logic NOR Gate is the reverse or complementary form of the inclusive OR gate.

CD4001 Key Features

Wide supply voltage range 3.0V to 15V
Low power 10 nW (typ.)
High noise immunity 0.45 VDD (typ.)
Buffered Inputs and Outputs
Standard Symmetrical Output Characteristics
100% Tested for Maximum Quiescent Current at 20V
5V, 10V and 15V Parametric Ratings
Maximum Input Current of 1µA at 18V Over Full Package-Temperature Range; 100nA at 18V and +25oC

CD4002 Pinout

Pin No	Pin Name	Descrpition
1	Q1	output of gate 1
2	A2	input 1 of gate 1
3	B3	input 2 of gate 1
4	C4	input 3 of gate 1
5	D5	input 4 of gate 1
6	NC	normally closed
7	VSS	source supply
8	NC	normally closed
9	E9	input 1 of gate 2
10	F10	input 2 of gate 2
11	G11	input 3 of gate 2
12	H12	input 4 of gate 2
13	Q2	output of gate 2
14	VCC	Collector supply voltage