| HEC4528BDB | Dual monostable multivibrator | Datasheet*) |
| HEC4528BT | Dual monostable multivibrator | Datasheet*) |
| HEF4528BD | Dual monostable multivibrator | Datasheet*) |
| HEF4528BDB | Dual monostable multivibrator | Datasheet*) |
| HEF4528BP | Dual monostable multivibrator | Datasheet*) |
| HEF4528BPB | Dual monostable multivibrator | Datasheet*) |
| HEF4528BT | Dual monostable multivibrator | Datasheet*) |
| HEF4528BU | Dual monostable multivibrator | Datasheet*) |