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| Part Number | FM25C640ULEN | FM25C040ULEN |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Status | Active | Active |
| Memory Type | Non-Volatile | Non-Volatile |
| Memory Format | EEPROM | EEPROM |
| Technology | EEPROM | EEPROM |
| Memory Size | 64Kb (8K x 8) | 4Kb (512 x 8) |
| Memory Interface | SPI | SPI |
| Clock Frequency | 1 MHz | 1 MHz |
| Write Cycle Time - Word, Page | 15ms | 15ms |
| Access Time | - | - |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-DIP | 8-DIP |
