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| PartNumber | AT24C128C-MAHM-E | AT24C128C-CUM-T | AT24C128C |
| Description | EEPROM 1.7-5.5V, 1MHz, Ind Tmp, 8-UDFN | EEPROM 1MHz, Ind Temp, 8-VFBGA | |
| Manufacturer | Microchip | Microchip | ATMEL |
| Product Category | EEPROM | EEPROM | Memory |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | UDFN-8 | VFBGA-8 | - |
| Memory Size | 128 kbit | 128 kbit | - |
| Organization | 16 k x 8 | 16 k x 8 | - |
| Interface Type | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C | - |
| Data Retention | 40 Year | 40 Year | - |
| Maximum Clock Frequency | 1 MHz | 1 MHz | - |
| Supply Current Max | 3 mA | 3 mA | - |
| Supply Voltage Min | 1.7 V | 5.5 V | - |
| Supply Voltage Max | 5.5 V | 1.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Series | AT24C128C | AT24C128C | - |
| Packaging | Reel | Reel | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Operating Supply Voltage | 1.7 V to 5.5 V | 1.7 V to 5.5 V | - |
| Product Type | EEPROM | EEPROM | - |
| Factory Pack Quantity | 15000 | 5000 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |