| Компонент | Описание | Производитель | |
| P4C422-25FC | HIGH SPEED 256 x 4 STATIC CMOS RAM |
Pyramid Semiconductor Corporation |
|
| P4C422-25FM | HIGH SPEED 256 x 4 STATIC CMOS RAM |
Pyramid Semiconductor Corporation |
|
| P4C422-25FMB | HIGH SPEED 256 x 4 STATIC CMOS RAM |
Pyramid Semiconductor Corporation |