SN74LS40N и другие
| Компонент | Описание | Производитель | |
| SN74LS40 | DUAL 4-INPUT POSITIVE-NAND BUFFERS |
Texas Instruments |
 |
| SN74LS40D | DUAL 4-INPUT NAND BUFFER |
Motorola, Inc |
|
| SN74LS40D | DUAL 4-INPUT POSITIVE-NAND BUFFERS |
Texas Instruments |
|
| SN74LS40N | DUAL 4-INPUT POSITIVE-NAND BUFFERS |
Texas Instruments |
|
| SN74LS40N | DUAL 4-INPUT NAND BUFFER |
Motorola, Inc |
|