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| Part Number | 93C66AT-I/MC | 93C66CT-I/MC | 93C66BT-I/MC | 93C66AT-I/MS | 93C56AT-I/MC |
|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Active | Active | Active |
| Memory Type | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile | Non-Volatile |
| Memory Format | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM |
| Technology | EEPROM | EEPROM | EEPROM | EEPROM | EEPROM |
| Memory Size | 4Kb (512 x 8) | 4Kb (512 x 8, 256 x 16) | 4Kb (256 x 16) | 4Kb (512 x 8) | 2Kb (256 x 8) |
| Memory Interface | SPI | SPI | SPI | SPI | SPI |
| Clock Frequency | 2 MHz | 3 MHz | 2 MHz | 2 MHz | 2 MHz |
| Write Cycle Time - Word, Page | 2ms | 2ms | 2ms | 2ms | 2ms |
| Access Time | - | - | - | - | - |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-VFDFN Exposed Pad | 8-VFDFN Exposed Pad | 8-VFDFN Exposed Pad | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-VFDFN Exposed Pad |
| Supplier Device Package | 8-DFN (2x3) | 8-DFN (2x3) | 8-DFN (2x3) | 8-MSOP | 8-DFN (2x3) |
