| Компонент | Описание | Производитель | |
| KK74AC21 | Dual 4-Input AND Gate High-Speed Silicon-Gate CMOS |
KODENSHI KOREA CORP. |
|
| KK74AC21D | Dual 4-Input AND Gate High-Speed Silicon-Gate CMOS |
KODENSHI KOREA CORP. |
|
| KK74AC21N | Dual 4-Input AND Gate High-Speed Silicon-Gate CMOS |
KODENSHI KOREA CORP. |