| PartNumber | AT28HC256F-12JI | AT28HC256F-12JA | AT28HC256F-12JC |
| Description | EEPROM 256K FAST PROG SDP-120NS IND TEMP | IC EEPROM 256K PARALLEL 32PLCC | IC EEPROM 256K PARALLEL 32PLCC |
| Manufacturer | Microchip | - | Atmel |
| Product Category | EEPROM | - | Memory |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-32 | - | - |
| Memory Size | 256 kbit | - | 256K (32K x 8) |
| Organization | 32 k x 8 | - | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | - | - |
| Access Time | 70 ns | - | - |
| Data Retention | 10 Year | - | - |
| Supply Current Max | 80 mA | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | AT28HC256 | - | - |
| Height | 2.79 mm (Min) | - | - |
| Length | 14.1 mm (Max) | - | - |
| Width | 11.51 mm (Max) | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Operating Supply Current | 80 mA | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Output Enable Access Time | 50 ns | - | - |
| Product Type | EEPROM | - | - |
| Programming Voltage | 4.5 V to 5.5 V | - | - |
| Factory Pack Quantity | 32 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Packaging | - | - | Tube |
| Package Case | - | - | 32-LCC (J-Lead) |
| Operating Temperature | - | - | 0°C ~ 70°C (TC) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 32-PLCC |
| Memory Type | - | - | EEPROM |
| Speed | - | - | 120ns |
| Format Memory | - | - | EEPROMs - Parallel |