| PartNumber | 25AA040AT-I/MC | 25AA040AT-I/MS | 25AA040AT-I/MNY |
| Description | EEPROM 4K 512X8 1.8V SER EE IND | EEPROM 4K 512X8 1.8V SER EE IND | EEPROM 4K 512 X 8 1.8V SER EE IND |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | DFN-8 | MSOP-8 | TDFN-8 |
| Memory Size | 4 kbit | 4 kbit | 4 kbit |
| Organization | 512 x 8 | 512 x 8 | 512 x 8 |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI |
| Access Time | 50 ns | 50 ns | - |
| Data Retention | 200 Year | 200 Year | 200 Year |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 10 MHz |
| Supply Current Max | 5 mA | 5 mA | 5 mA |
| Supply Voltage Min | 1.8 V | 1.8 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Reel | Reel |
| Height | 0.95 mm (Max) | 0.85 mm | - |
| Length | 2 mm | 3 mm | - |
| Width | 3 mm | 3 mm | - |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 3300 | 2500 | 3300 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.001319 oz | 0.004938 oz | 0.001764 oz |