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| PartNumber | SST39SF040-70-4C-NHE | SST39SF040-70-4C-NHE-T | SST39SF040-70-4C-NH |
| Description | NOR Flash 512K X 8 70ns | NOR Flash 4M (512Kx8) 70ns 5.0V Commercial | NOR Flash 512K X 8 70ns |
| Manufacturer | Microchip | Microchip | SST |
| Product Category | NOR Flash | NOR Flash | Memory |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | PLCC-32 | PLCC-32 | - |
| Series | SST39SF | SST39SF | - |
| Memory Size | 4 Mbit | 4 Mbit | - |
| Interface Type | Parallel | Parallel | - |
| Organization | 512 k x 8 | 512 k x 8 | - |
| Timing Type | Asynchronous | Asynchronous | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Current Max | 25 mA | 25 mA | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tube | Reel | - |
| Memory Type | NOR | NOR | - |
| Speed | 70 ns | 70 ns | - |
| Architecture | Sector | Sector | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | NOR Flash | NOR Flash | - |
| Standard | Not Supported | - | - |
| Factory Pack Quantity | 30 | 750 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.075486 oz | 0.039824 oz | - |