| X22C12D | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18D package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| X22C12DI | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18D package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| X22C12DM | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18D package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| X22C12DMB | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18D package. | Datasheet*) |
| X22C12P | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18P package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| X22C12PI | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18P package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| X22C12PM | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18P package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| X22C12PMB | 1K (256 x 4) nonvolatile static RAM in 18-pin DIP18P package. | Datasheet*) |
| X22C12S | 1K (256 x 4) nonvolatile static RAM in 20-pin SOIC20 package. Operational temperature range from 0°C to 70°C. | Datasheet*) |
| X22C12SI | 1K (256 x 4) nonvolatile static RAM in 20-pin SOIC20 package. Operational temperature range from -40°C to 85°C. | Datasheet*) |
| X22C12SM | 1K (256 x 4) nonvolatile static RAM in 20-pin SOIC20 package. Operational temperature range from -55°C to 125°C. | Datasheet*) |
| X22C12SMB | 1K (256 x 4) nonvolatile static RAM in 20-pin SOIC20 package. | Datasheet*) |
| X22C12 | Nonvolatile Static RAM | Datasheet*) |
