| PartNumber | AT28C64E-12SU | AT28C64E-12SC | AT28C64E-12SI |
| Description | EEPROM 64K HI-ENDUR w/RDYBSY - 120NS | EEPROM 64K HI-ENDURANCE w/RDYBSY - 120NS | IC EEPROM 64K PARALLEL 28SOIC |
| Manufacturer | Microchip | Microchip | - |
| Product Category | EEPROM | EEPROM | - |
| RoHS | Y | N | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-28 | SOIC-28 | - |
| Memory Size | 64 kbit | 64 kbit | - |
| Organization | 8 k x 8 | 8 k x 8 | - |
| Interface Type | Parallel | Parallel | - |
| Access Time | 120 ns | 120 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 | 2.35 mm (Max) | 2.4 mm (Max) | - |
| Length | 18.1 mm (Max) | 18.5 mm (Max) | - |
| Width | 7.6 mm (Max) | 8.79 mm (Max) | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Operating Supply Current | 45 mA | 30 mA | - |
| Operating Supply Voltage | 5 V | 2.7 V, 3.6 V | - |
| Output Enable Access Time | 60 ns | 60 ns | - |
| Product Type | EEPROM | EEPROM | - |
| Programming Voltage | 5 V | - | - |
| Factory Pack Quantity | 27 | 27 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |