| 型号 | 厂家 | 封装 | 批号 |
| 23A256/P | Microchip | DIP-8 | 22+ |
| 23A256T-E/SN | Microchip | SOP-8 | 22+ |
| 23A256-E/P | Microchip | DIP-8 | 22+ |
| 23A256T/SN | Microchip | SOP-8 | 22+ |
| 23A256-E/SN | Microchip | SOP-8 | 22+ |
| 23A256/ST | Microchip | TSSOP-8 | 22+ |
| 23A256T/ST | Microchip | TSSOP-8 | 22+ |
| 23A256-E/ST | Microchip | TSSOP-8 | 22+ |
| 23A256T-E/ST | Microchip | TSSOP-8 | 22+ |
| 24LC04B-I(SN) | Microchip | SOP-8 | 22+ |
