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| PartNumber | SST39LF040-45-4C-B3KE-T | SST39LF040-45-4C-NHE-T | SST39LF040-45-4C-NHE |
| Description | NOR Flash 3.0 to 3.6V 4Mbit Multi-Purpose Flash | NOR Flash 3.0V to 3.6V 4Mbit Multi-Purpose Flash | NOR Flash 512K X 8 45ns |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | NOR Flash | NOR Flash | NOR Flash |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TFBGA-48 | PLCC-32 | PLCC-32 |
| Series | SST39LF | SST39LF | SST39LF |
| Memory Size | 4 Mbit | 4 Mbit | 4 Mbit |
| Interface Type | Parallel | Parallel | Parallel |
| Organization | 512 k x 8 | 512 k x 8 | 512 k x 8 |
| Timing Type | Asynchronous | Asynchronous | Asynchronous |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Supply Voltage Min | 3 V | 3 V | 3 V |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Current Max | 20 mA | 20 mA | 20 mA |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Memory Type | NOR | NOR | NOR |
| Speed | 45 ns | 45 ns | 45 ns |
| Architecture | Sector | Sector | Sectored |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Packaging | - | Reel | Tube |
| Factory Pack Quantity | - | 750 | 30 |
| RoHS | - | - | Y |
| Height | - | - | 2.84 (Max) mm |
| Length | - | - | 14.05 (Max) mm |
| Type | - | - | No Boot Block |
| Width | - | - | 11.51 (Max) mm |
| Moisture Sensitive | - | - | Yes |
| Programming Voltage | - | - | 3 V to 3.6 V |
| Standard | - | - | Not Supported |
| Unit Weight | - | - | 0.007055 oz |