| Part Number | AT93C56B-XPD-T | AT93C66B-XPD-T |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Memory | Memory |
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| Product Status | Active | Active |
| Memory Type | Non-Volatile | Non-Volatile |
| Memory Format | EEPROM | EEPROM |
| Technology | EEPROM | EEPROM |
| Memory Size | 2Kb (256 x 8, 128 x 16) | 4Kb (512 x 8, 256 x 16) |
| Memory Interface | SPI | SPI |
| Clock Frequency | 1 MHz | 1 MHz |
| Write Cycle Time - Word, Page | 5ms | 5ms |
| Access Time | - | - |
| Voltage - Supply | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 8-TSSOP | 8-TSSOP |