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| PartNumber | AT25FS040Y7-YH27-T | AT25FS040N-SH27-B | AT25FS010N-SH27-T |
| Description | NOR Flash NIPDAU 2.7V - NIPDAU 2.7V | NOR Flash 2.7V - 8-PH/ NIPDAU 2.7 | NOR Flash 8 2.7V - 8-PH/ NIPDAU 2.7 |
| 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 | SAP-8 | SOIC-8 | SOIC-8 |
| Series | AT25FS | AT25FS | AT25FS |
| Memory Size | 4 Mbit | 4 Mbit | 1 Mbit |
| Maximum Clock Frequency | 50 MHz | 50 MHz | 50 MHz |
| Interface Type | SPI | SPI | SPI |
| Organization | 512 k x 8 | 512 k x 8 | 128 k x 8 |
| Timing Type | Synchronous | Synchronous | Synchronous |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Supply Voltage Min | 2.7 V | 2.7 V | 2.7 V |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Current Max | 17 mA | 17 mA | 17 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Memory Type | NOR | NOR | NOR |
| Speed | 50 MHz | 50 MHz | 50 MHz |
| Architecture | Sector | Sector | Sector |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Standard | Not Supported | Not Supported | Not Supported |
| Factory Pack Quantity | 3000 | 100 | 4000 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | - | 0.019048 oz | 0.019048 oz |
| Packaging | - | - | Reel |