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| PartNumber | AT28HC256F-90FM/883 | AT28HC256F-90DM/883 | AT28HC256F-90FM/883C |
| Description | EEPROM 256K FAST PROG SDP - 90NS | EEPROM 256K FAST PROG SDP - 90NS | |
| Manufacturer | Microchip | Adesto Technologies | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | DBGA2-8 | UDFN-8 | - |
| Memory Size | 2 kbit | - | - |
| Organization | 256 x 8, 128 x 16 | - | - |
| Interface Type | Serial, 3-Wire, Microwire | - | - |
| Data Retention | 100 Year | - | - |
| Maximum Clock Frequency | 0.25 MHz | - | - |
| Supply Current Max | 2 mA | - | - |
| Supply Voltage Min | 1.8 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Height | 0.66 mm | - | - |
| Length | 2 mm | - | - |
| Width | 1.5 mm | - | - |
| Brand | Microchip Technology / Atmel | Adesto Technologies | - |
| Operating Supply Current | 2 mA | - | - |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | - | - |
| Product Type | EEPROM | EEPROM | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Series | - | RM25C256DS | - |
| Packaging | - | Reel | - |
| Factory Pack Quantity | - | 5000 | - |
| Tradename | - | Mavriq | - |