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| PartNumber | SST25WF040B-40I/SN | SST25WF040B-40I/W13G | SST25WF040B-40ISN |
| Description | NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash | NOR Flash 1.65V to 1.95V 4Mbit SPI Serial Flash | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | NOR Flash | NOR Flash | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-8 | - | - |
| Series | SST25WF | SST25WF | - |
| Memory Size | 4 Mbit | 4 Mbit | - |
| Maximum Clock Frequency | 40 MHz | 40 MHz | - |
| Interface Type | SPI | SPI | - |
| Organization | 512 k x 8 | 512 k x 8 | - |
| Timing Type | Synchronous | Synchronous | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Supply Voltage Min | 1.65 V | 1.65 V | - |
| Supply Voltage Max | 1.95 V | 1.95 V | - |
| Supply Current Max | 15 mA | 15 mA | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | - | - |
| Memory Type | NOR | - | - |
| Speed | 40 MHz | 40 MHz | - |
| Architecture | Sector | - | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | NOR Flash | NOR Flash | - |
| Factory Pack Quantity | 100 | - | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.019048 oz | - | - |