| PartNumber | SST39SF040-70-4I-NHE | SST39SF040-70-4I-WHE | SST39SF040-70-4I-NHE-T |
| Description | NOR Flash 512K X 8 70ns | NOR Flash 512K X 8 70ns | NOR Flash 4M (512Kx8) 70ns 5.0V Industrial |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | NOR Flash | NOR Flash | NOR Flash |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | PLCC-32 | TSOP-32 | PLCC-32 |
| Series | SST39SF | SST39SF | SST39SF |
| 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 | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Current Max | 25 mA | 25 mA | 25 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tray | Reel |
| Height | 2.84 (Max) mm | - | - |
| Length | 14.05 (Max) mm | - | - |
| Memory Type | NOR | NOR | NOR |
| Speed | 70 ns | 70 ns | 70 ns |
| Type | No Boot Block | - | - |
| Width | 11.51 (Max) mm | - | - |
| Architecture | Sector | Sector | Sector |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Programming Voltage | 4.5 V to 5.5 V | - | - |
| Standard | Not Supported | Not Supported | - |
| Factory Pack Quantity | 30 | 208 | 750 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.016014 oz | 0.255983 oz | 0.039824 oz |