CD4073 – An IC with Three AND Gates (3-input)
The CD4073 is a CMOS chip with three 3-input AND gates. Because each gate has three inputs and it has three gates inside, it’s usually called a Triple 3-Input AND Gate.
An AND gate is a basic logic gate that checks if all its inputs are HIGH. So the output from a 3-input AND gate will only be HIGH if all three inputs are HIGH.
Pin Overview
| Pin Name | Pin # | Type | Description |
|---|---|---|---|
| VDD | 14 | Power | Supply Voltage (+3 to +15V) |
| GND | 7 | Power | Ground (0V) |
| A1 to A3 | 1, 3, 13 | Input | Inputs A of the three AND gates |
| B1 to B3 | 2, 4, 12 | Input | Inputs B of the three AND gates |
| C1 to C3 | 5, 8, 11 | Input | Inputs C of the three AND gates |
| Q1 to Q3 | 6, 9, 10 | Output | Outputs from the three AND gates |
What is a 3-input AND gate?
An AND gate with three inputs will only give out HIGH if all inputs are HIGH (input 1 AND input 2 AND input 3). You can see the truth table below.
| Input A | Input B | Input C | Output Q |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 |
| 0 | 1 | 0 | 0 |
| 0 | 1 | 1 | 0 |
| 1 | 0 | 0 | 0 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 0 | 0 |
| 1 | 1 | 1 | 1 |
Product Attributes
| TYPE | DESCRIPTION |
| Logic Type | AND Gate |
| Number of Circuits | 3 |
| Number of Inputs | 3 |
| Voltage – Supply | 3V ~ 18V |
| Current – Quiescent (Max) | 1 µA |
| Current – Output High, Low | 3.4mA, 3.4mA |
| Input Logic Level – Low | 1.5V ~ 4V |
| Input Logic Level – High | 3.5V ~ 11V |
| Max Propagation Delay @ V, Max CL | 90ns @ 15V, 50pF |
| Operating Temperature | -55°C ~ 125°C |
| Mounting Type | Through Hole |
| Package / Case | 14-DIP |
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