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| PartNumber | CAT25256HU4I-GT3 | CAT25256LI-G | CAT25256C8ATR |
| Description | EEPROM 256KB SPI SER CMOS EEPROM | EEPROM (32kx8) 256K SPI 1.8 to 5.5V | INTEGRATED CIRCUIT |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | UDFN-8 | PDIP-8 | - |
| Memory Size | 256 kbit | 256 kbit | - |
| Organization | 32 k x 8 | 32 k x 8 | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | Serial, 4-Wire, SDI, SPI | - |
| Data Retention | 100 Year | 100 Year | - |
| Maximum Clock Frequency | 10 MHz | 5 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 | CAT25256 | CAT25256 | - |
| Packaging | Reel | Tube | - |
| 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 | 50 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.000335 oz | 0.032805 oz | - |
| Access Time | - | 75 ns | - |
| Height | - | 3.3 mm | - |
| Length | - | 10.16 mm (Max) | - |
| Width | - | 6.35 mm | - |
| Operating Supply Current | - | 4 mA | - |