| PartNumber | AT45DB021E-MHN-Y | AT45DB021E-MHN2B-T | AT45DB021E-MHN-T |
| Description | NOR Flash 2M 1.65-3.6V 70Mhz Data Flash | NOR Flash 2M, 85MHz 1.65-3.6V DataFlash | NOR Flash 2M 1.65-3.6V 70Mhz Data Flash |
| Manufacturer | Adesto Technologies | Adesto Technologies | Adesto Technologies |
| Product Category | NOR Flash | NOR Flash | NOR Flash |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UDFN-8 | UDFN-8 | UDFN-8 |
| Series | AT45DB021E | AT45DB021E | AT45DB021E |
| Memory Size | 2 Mbit | 2 Mbit | 2 Mbit |
| Maximum Clock Frequency | 70 MHz | 70 MHz | 70 MHz |
| Interface Type | SPI | SPI | SPI |
| Organization | 256 k x 8 | 256 k x 8 | 256 k x 8 |
| Timing Type | Synchronous | Synchronous | Synchronous |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Supply Voltage Min | 1.65 V | 1.65 V | 1.65 V |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Current Max | 15 mA | 15 mA | 15 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Reel | Reel |
| Memory Type | NOR | NOR | NOR |
| Speed | 70 MHz | 70 MHz | 70 MHz |
| Architecture | Chip Erase | Chip Erase | Chip Erase |
| Brand | Adesto Technologies | Adesto Technologies | Adesto Technologies |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Factory Pack Quantity | 570 | 6000 | 6000 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | DataFlash | DataFlash | DataFlash |
| Unit Weight | 0.000335 oz | 0.000335 oz | 0.000335 oz |