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| PartNumber | CAT24C128HU4IGT3 | CAT24C128HU3IGT3 | CAT24C128HU3IG |
| Description | EEPROM DPPNV32TAPSUP/DOWN | EEPROM 128K-Bit I2C Serial | |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | UDFN-8 | UDFN-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 | 100 Year | 100 Year | - |
| Maximum Clock Frequency | 400 kHz | 0.4 MHz | - |
| Supply Current Max | 1 mA | 3 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 | - |
| Series | CAT24C128 | - | - |
| Packaging | Reel | Reel | - |
| Brand | ON Semiconductor | ON Semiconductor | - |
| Operating Supply Voltage | 1.8 V to 5.5 V | 2.5 V, 3.3 V, 5 V | - |
| Product Type | EEPROM | EEPROM | - |
| Factory Pack Quantity | 3000 | 3000 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.000335 oz | 0.000335 oz | - |
| Access Time | - | 900 ns | - |