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| PartNumber | NM93C66EM8 | NM93C66EM8X | NM93C66EM8X SOP8 |
| Description | IC EEPROM 4K SPI 1MHZ 8SO | ||
| Manufacturer | NS | - | - |
| Product Category | IC Chips | - | - |
| Series | - | - | - |
| Packaging | Tube | - | - |
| Part Status | Obsolete | - | - |
| Memory Type | Non-Volatile | - | - |
| Memory Format | EEPROM | - | - |
| Technology | EEPROM | - | - |
| Memory Size | 4Kb (256 x 16) | - | - |
| Clock Frequency | 1MHz | - | - |
| Write Cycle Time Word, Page | 10ms | - | - |
| Memory Interface | SPI | - | - |
| Voltage Supply | 4.5 V ~ 5.5 V | - | - |
| Operating Temperature | -40°C ~ 85°C (TA) | - | - |
| Mounting Type | Surface Mount | - | - |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - |
| Supplier Device Package | 8-SO | - | - |
| Base Part Number | NM93C66 | - | - |