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| PartNumber | 25LC040AT-E/MC | 25LC040AT-E/MNY | 25LC040AT-E/MNY/C25 |
| Description | EEPROM 4K 512X8 2.5V SER EE EXT | EEPROM 4K 512 X 8 2.5V SER EE EXT | |
| Manufacturer | Microchip | Microchip | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | DFN-8 | TDFN-8 | - |
| Memory Size | 4 kbit | 4 kbit | - |
| Organization | 512 x 8 | 512 x 8 | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | - |
| Access Time | 50 ns | - | - |
| Data Retention | 200 Year | 200 Year | - |
| Maximum Clock Frequency | 10 MHz | 10 MHz | - |
| Supply Current Max | 5 mA | 5 mA | - |
| Supply Voltage Min | 2.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Packaging | Reel | Reel | - |
| Height | 0.95 mm (Max) | - | - |
| Length | 2 mm | - | - |
| Width | 3 mm | - | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Operating Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | - |
| Product Type | EEPROM | EEPROM | - |
| Factory Pack Quantity | 3300 | 3300 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.001319 oz | 0.001764 oz | - |