| PartNumber | AT28HC64B-90JC | AT28HC64B-90JI | AT28HC64B-90JA |
| Description | EEPROM 1M 5V SDP - 90NS COM TEMP | IC EEPROM 64K PARALLEL 32PLCC | IC EEPROM 64K PARALLEL 32PLCC |
| Manufacturer | Microchip | Atmel | - |
| Product Category | EEPROM | Memory | - |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-32 | - | - |
| Memory Size | 64 kbit | 64K (8K x 8) | - |
| Organization | 8 k x 8 | - | - |
| Interface Type | Serial, 4-Wire, SDI, SPI | - | - |
| Access Time | 55 ns | - | - |
| Data Retention | 10 Year | - | - |
| Supply Current Max | 40 mA | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Series | AT28HC64B | - | - |
| Height | 2.79 mm (Min) | - | - |
| Length | 14.1 mm (Max) | - | - |
| Width | 11.51 mm (Max) | - | - |
| Brand | Microchip Technology | - | - |
| Operating Supply Current | 40 mA | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Output Enable Access Time | 40 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 | - | -40°C ~ 85°C (TC) | - |
| Interface | - | Parallel | - |
| Voltage Supply | - | 4.5 V ~ 5.5 V | - |
| Supplier Device Package | - | 32-PLCC | - |
| Memory Type | - | EEPROM | - |
| Speed | - | 90ns | - |
| Format Memory | - | EEPROMs - Parallel | - |