HD74LS221 и другие
| Компонент | Описание | Производитель | |
| HD74LS22 | Dual 4-input Positive NAND Gates(with Open Collector Ouputs) |
Hitachi Semiconductor |
 |
| HD74LS22 | Ouadruple 2-input Positive NAND Gates |
Hitachi Semiconductor |
|
| HD74LS221 | Dual Monostable Multivibrators |
Renesas Technology Corp |
|
| HD74LS221 | Dual Monostable Multivibrators |
Hitachi Semiconductor |
|
| HD74LS221 | Ouadruple 2-input Positive NAND Gates |
Hitachi Semiconductor |
|
| HD74LS221P | Dual Monostable Multivibrators |
Renesas Technology Corp |
|
| HD74LS221RPEL | Dual Monostable Multivibrators |
Renesas Technology Corp |
|