| PartNumber | W25Q40CLSNIG | W25Q40CLSSIG | W25Q40CLSNIG TR |
| Description | NOR Flash spiFlash, 4M-bit, 4Kb Uniform Sector | NOR Flash spiFlash, 4M-bit, 4Kb Uniform Sector | NOR Flash spiFlash, 4M-bit, 4Kb Uniform Sector |
| Manufacturer | Winbond | Winbond | Winbond |
| Product Category | NOR Flash | NOR Flash | NOR Flash |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SOIC-8 | SOIC-8 |
| Series | W25Q40CL | W25Q40CL | W25Q40CL |
| Memory Size | 4 Mbit | 4 Mbit | 4 Mbit |
| Maximum Clock Frequency | 104 MHz | 104 MHz | 104 MHz |
| Interface Type | SPI | SPI | SPI |
| 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 | 2.3 V | 2.3 V | 2.3 V |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Current Max | 16 mA | 16 mA | 16 mA |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | Reel |
| Brand | Winbond | Winbond | Winbond |
| Moisture Sensitive | Yes | Yes | Yes |
| Product Type | NOR Flash | NOR Flash | NOR Flash |
| Factory Pack Quantity | 100 | 90 | 2500 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | SpiFlash | SpiFlash | SpiFlash |