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| PartNumber | CAT25128XI-T2 | CAT25128XI | CAT25128XE |
| Description | EEPROM 128K SPI Serial | EEPROM 128K SPI Serial | 128KB SPI SER CMOS EEPROM |
| Manufacturer | ON Semiconductor | ON Semiconductor | Catalyst |
| Product Category | EEPROM | EEPROM | IC Chips |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-8 | SOIC-8 | - |
| Memory Size | 128 kbit | 128 kbit | - |
| Organization | 16 k x 8 | 16 k x 8 | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | - |
| Access Time | 75 ns | - | - |
| Data Retention | 100 Year | - | - |
| Maximum Clock Frequency | 10 MHz | 10 MHz | - |
| Supply Current Max | 4 mA | 4 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 | CAT25128 | - | - |
| Packaging | Reel | - | - |
| Height | 1.78 mm | - | - |
| Length | 5.33 mm | - | - |
| Width | 5.38 mm | - | - |
| Brand | ON Semiconductor | ON Semiconductor | - |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Current | 4 mA | - | - |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | - | - |
| Product Type | EEPROM | EEPROM | - |
| Factory Pack Quantity | 2000 | 94 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.019048 oz | 0.019048 oz | - |