CD4085 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4085 has Dual 2-wide, 2-input AND-OR-Invert Gate
CD4085 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.

CD4085 Features
- High Voltage Type (20V Rating)
- Medium Speed Operation
- tPHL = 90ns
- tPLH = 125ns (Typ.) at 10V
- Individual Inhibit Controls
- 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 = 5V
- 2V at VDD = 10V
- 2.5V at VDD = 15V
CD4085 Specifications
Absolute Maximum Ratings
- 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
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
CD4085 Pinout Diagram

CD4085 Pin Description
Pin No | Pin Name | Description |
1 | A1 | Input Pin 1 Of AND-OR-Invert Gate 1 |
2 | B1 | Input Pin 2 Of AND-OR-Invert Gate 1 |
3 | E1=(INH1+A1B1+C1D1)’ | Output Of AND-OR-Invert Gate 1 |
4 | E2=(INH2+A2B2+C2D2)’ | Output Of AND-OR-Invert Gate 2 |
5 | A2 | Input Pin 1 Of AND-OR-Invert Gate 2 |
6 | B2 | Input Pin 2 Of AND-OR-Invert Gate 2 |
7 | VSS | Supply Voltage |
8 | C2 | Input Pin 3 Of AND-OR-Invert Gate 2 |
9 | D2 | Input Pin 4 Of AND-OR-Invert Gate 2 |
10 | INHIBIT 1 | Inhibit Pin 1 |
11 | INHIBIT 2 | Inhibit Pin 2 |
12 | C1 | Input Pin 3 Of AND-OR-Invert Gate 1 |
13 | D1 | Input Pin 4 Of AND-OR-Invert Gate 1 |
14 | VDD | Drain Voltage |
CD4085 Circuit
Applications
CD4085 Alternative Equivalent
Download CD4085-Dual 2-wide, 2-input AND-OR-Invert Gate Datasheet from the link given below.