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| PartNumber | AT93C66A-10PI-1.8 | AT93C66A-10PI | AT93C66A-10PI-2.7 |
| Description | IC EEPROM 4K SPI 2MHZ 8DIP | IC EEPROM 4K SPI 2MHZ 8DIP | |
| Manufacturer | - | - | Atmel |
| Product Category | - | - | Memory |
| Series | - | - | - |
| Packaging | - | - | Tube |
| Package Case | - | - | 8-DIP (0.300", 7.62mm) |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Interface | - | - | Microwire, 3-Wire Serial |
| Voltage Supply | - | - | 2.7 V ~ 5.5 V |
| Supplier Device Package | - | - | 8-PDIP |
| Memory Size | - | - | 4K (512 x 8 or 256 x 16) |
| Memory Type | - | - | EEPROM |
| Speed | - | - | 1MHz, 2MHz |
| Format Memory | - | - | EEPROMs - Serial |