| PartNumber | AT93C66-10SC-2.5 | AT93C66-10SC | AT93C66-10SC-2.7 |
| Description | IC EEPROM 4K SPI 2MHZ 8SOIC | IC EEPROM 4K SPI 2MHZ 8SOIC | IC EEPROM 4K SPI 2MHZ 8SOIC |
| Manufacturer | - | Atmel | AT |
| Product Category | - | Memory | IC Chips |
| Series | - | - | - |
| Packaging | - | Tube | - |
| Package Case | - | 8-SOIC (0.154", 3.90mm Width) | - |
| Operating Temperature | - | 0°C ~ 70°C (TA) | - |
| Interface | - | Microwire, 3-Wire Serial | - |
| Voltage Supply | - | 4.5 V ~ 5.5 V | - |
| Supplier Device Package | - | 8-SOIC | - |
| Memory Size | - | 4K (512 x 8 or 256 x 16) | - |
| Memory Type | - | EEPROM | - |
| Speed | - | 2MHz | - |
| Format Memory | - | EEPROMs - Serial | - |