| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | DP8422AV-20 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
 National Semiconductor ... | DP8422AV-25 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8422A |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8422V |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8422V-33 |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8420A |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8420AV-20 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8420AV-25 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8420V |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8420V-33 |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8421A |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8421AV-20 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8421AV-25 |  824Kb/58P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8421V |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP8421V-33 |  824Kb/60P | microCMOS Programmable 256k/1M/4M Dynamic RAM Controller/Drivers |
| DP84240 |  140Kb/6P | TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications |
| DP84240J |  140Kb/6P | TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications |
| DP84240N |  140Kb/6P | TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications |
| DP84244 |  140Kb/6P | TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications |
| DP84244J |  140Kb/6P | TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications |