
Pin Overview
| Pin Name |
Pin # |
Type |
Description |
| VCC |
14 |
Power |
Supply Voltage |
| GND |
7 |
Power |
Ground |
| A1 to A3 |
1, 2, 13 |
Input |
Inputs A of the three NAND gates |
| B1 to B3 |
3, 4, 5 |
Input |
Inputs B of the three NAND gates |
| C1 to C3 |
9, 10, 11 |
Input |
Inputs C of the three NAND gates |
| Q1 to Q3 |
12, 6, 8 |
Output |
Outputs from the three NAND gates |
A NAND gate is a logic gate that works like an AND gate with a NOT gate on the output.
A 3-input AND will only be high when all the inputs are HIGH. This means that a 3-input NAND will only be LOW when all three inputs are HIGH.
3-input NAND gate symbol
| Input A |
Input B |
Input C |
Output Q |
| 0 |
0 |
0 |
1 |
| 0 |
0 |
1 |
1 |
| 0 |
1 |
0 |
1 |
| 0 |
1 |
1 |
1 |
| 1 |
0 |
0 |
1 |
| 1 |
0 |
1 |
1 |
| 1 |
1 |
0 |
1 |
| 1 |
1 |
1 |
0 |
Truth Table for the 3-input NAND gate
Specifications
| Product Attribute |
Attribute Value |
| Product Category: |
Logic Gates |
| Product: |
Single-Function Gates |
| Logic Function: |
NAND |
| Logic Family: |
74LS |
| Number of Gates: |
3 Gate |
| Number of Input Lines: |
3 Input |
| Number of Output Lines: |
1 Output |
| High Level Output Current: |
– 100 uA |
| Low Level Output Current: |
8 mA |
| Propagation Delay Time: |
32 ns |
| Supply Voltage – Max: |
5.25 V |
| Supply Voltage – Min: |
4.75 V |
| Minimum Operating Temperature: |
0 C |
| Maximum Operating Temperature: |
+ 70 C |
| Mounting Style: |
Through Hole |
| Package/Case: |
PDIP-14 |
| Function: |
Gate |
| Logic Type: |
3-INPUT NAND |
| Operating Supply Voltage: |
5 V |
| Operating Temperature Range: |
0 C to + 70 C |