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| PartNumber | AT25640A-10PI-1.8 | AT25640A-10PI-2.7 | AT25640A-10PU-1.8 |
| Description | IC EEPROM 64K SPI 20MHZ 8DIP | IC EEPROM 64K SPI 20MHZ 8DIP | |
| Manufacturer | - | Atmel | Atmel |
| Product Category | - | Memory | Memory |
| Series | - | - | - |
| Packaging | - | Tube | Tube |
| Package Case | - | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Operating Temperature | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Interface | - | SPI Serial | SPI Serial |
| Voltage Supply | - | 2.7 V ~ 5.5 V | 1.8 V ~ 5.5 V |
| Supplier Device Package | - | 8-PDIP | 8-PDIP |
| Memory Size | - | 64K (8K x 8) | 64K (8K x 8) |
| Memory Type | - | EEPROM | EEPROM |
| Speed | - | 10MHz, 20MHz | 5MHz, 10MHz, 20MHz |
| Format Memory | - | EEPROMs - Serial | EEPROMs - Serial |