| PartNumber | M29F400BT70M6E | M29F400BT70M1 | M29F400BT70N6 |
| Description | NOR Flash E-EPROM | NOR Flash 512Kx8 or 256Kx16 70 | NOR Flash 512Kx8 or 256Kx16 70 |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | NOR Flash | NOR Flash | NOR Flash |
| RoHS | Y | N | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SO-44 | SO-44 | TSOP-48 |
| Series | M29F | M29F | M29F |
| Memory Size | 4 Mbit | 4 Mbit | 4 Mbit |
| Interface Type | Parallel | Parallel | Parallel |
| Organization | 512 k x 8, 256 k x 16 | 512 k x 8, 256 k x 16 | 512 k x 8, 256 k x 16 |
| Timing Type | Asynchronous | Asynchronous | Asynchronous |
| Data Bus Width | 8 bit, 16 bit | 8 bit, 16 bit | 8 bit, 16 bit |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Current Max | 20 mA | 20 mA | 20 mA |
| Minimum Operating Temperature | - 40 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 85 C |
| Packaging | Tray | Tray | Tray |
| Memory Type | NOR | NOR | NOR |
| Speed | 70 ns | 70 ns | 70 ns |
| Architecture | Block Erase | Block Erase | Block Erase |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Standard | Not Supported | Not Supported | Not Supported |
| Factory Pack Quantity | 40 | 40 | 96 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |