| PartNumber | AT28C64E-20JI | AT28C64E-20PC | AT28C64E-20JC |
| Description | EEPROM 64K HI-ENDUR w/RDYBSY - 200NS | EEPROM 64K HI-ENDUR w/ RDYBSY 200NS | IC EEPROM 64K PARALLEL 32PLCC |
| Manufacturer | Microchip | Microchip | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | N | N | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | PLCC-32 | PDIP-28 | - |
| Memory Size | 64 kbit | 64 kbit | - |
| Organization | 8 k x 8 | 8 k x 8 | - |
| Interface Type | Parallel | Parallel | - |
| Access Time | 200 ns | 200 ns | - |
| Data Retention | 10 Year | 10 Year | - |
| Supply Current Max | 45 mA | 30 mA | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | - 40 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 70 C | - |
| Height | 2.79 mm (Min) | 4.83 - 0.38 mm (Max) (Min) | - |
| Length | 14.1 mm (Max) | 37.34 mm (Max) | - |
| Width | 11.51 mm (Max) | 13.97 mm (Max) | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Operating Supply Current | 45 mA | 30 mA | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Output Enable Access Time | 80 ns | 80 ns | - |
| Product Type | EEPROM | EEPROM | - |
| Factory Pack Quantity | 32 | 14 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | - | 0.147798 oz | - |