CD4002 Dual 4-Input NOR Gate
Series CD4000 (CMOS)
CD4002 overview
CD4002 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC's) constructed with N- and P-channel enhancement mode transistors. CD4002 has Dual 4-Input NOR Gate
CD4002 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

Datasheet
cd4002.pdf
Format PDFSize 108 KBLanguage EN
Third-party / unverified source
CD4002 features
- High-Voltage Types (20V Rating)
- Propagation Delay Time = 60ns (Typ.) at CL = 50pF,
- VDD = 10V
- 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
- Noise Margin (Over Full Package Temperature Range):1V at VDD = 5V2V at VDD = 10V2.5V at VDD = 15V
- 1V at VDD = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
CD4002 pinout

| Pin | Name | Description |
|---|---|---|
| 1 | J=(A+B+C+D)' | Output Of NOR Gate 1 |
| 2 | A | NOR Gate 1 Input 1 |
| 3 | B | NOR Gate 1 Input 2 |
| 4 | C | NOR Gate 1 Input 3 |
| 5 | D | NOR Gate 1 Input 4 |
| 6 | NC | No Connection |
| 7 | VSS | Supply Voltage |
| 8 | NC | No Connection |
| 9 | E | NOR Gate 2 Input 1 |
| 10 | F | NOR Gate 2 Input 2 |
| 11 | G | NOR Gate 2 Input 3 |
| 12 | H | NOR Gate 2 Input 4 |
| 13 | K=(E+F+G+H)' | NOR Gate 2 Output |
| 14 | VDD | Drain Voltage |
Absolute maximum ratings
| Parameter | Value |
|---|---|
| DC Supply Voltage Range, (VDD) | -0.5V to +20V (Voltage Referenced to VSS Terminals) |
| Input Voltage Range, All Inputs | -0.5V to VDD +0.5V |
| DC Input Current, Any One Input | ±10mA |
| Operating Temperature Range | -55oC to +125oC Package Types D, F, K, H |
| Storage Temperature Range (TSTG) | -65oC to +150oC |
| Lead Temperature (During Soldering) | +265oC |
CD4002 applications
- Mixer Tanks
Application circuit
CD4002 alternatives and equivalents
- CD4001
- CD4025
More about CD4002
Absolute Maximum Ratings
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD4002 Circuit
Here is a simple circuit of NOR gate implementation using diodes and NPN transistor LED at the output for indication.
CD4002 Alternative Equivalent
CD4001, CD4025

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