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| PartNumber | 93LC66B/SN | 93LC66B/P | 93LC66B |
| Description | EEPROM 256x16 | EEPROM 256x16 | INSTOCK |
| Manufacturer | Microchip | Microchip | MICHIPS |
| Product Category | EEPROM | EEPROM | Memory |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | SOIC-8 | PDIP-8 | - |
| Memory Size | 4 kbit | 4 kbit | - |
| Organization | 256 x 16 | 256 x 16 | - |
| Interface Type | Serial, 3-Wire, Microwire | Serial, 3-Wire, Microwire | - |
| Data Retention | 200 Year | 200 Year | - |
| Maximum Clock Frequency | 2 MHz | 2 MHz | - |
| Supply Current Max | 2 mA | 2 mA | - |
| Supply Voltage Min | 2.5 V | 2.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Packaging | Tube | Tube | - |
| Height | 1.25 mm (Min) | 3.3 mm | - |
| Length | 4.9 mm | 9.27 mm | - |
| Width | 3.9 mm | 6.35 mm | - |
| Brand | Microchip Technology | Microchip Technology | - |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Current | 1.5 mA | 1.5 mA | - |
| Operating Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | - |
| Product Type | EEPROM | EEPROM | - |
| Programming Voltage | 2.5 V to 6 V | 2.5 V to 6 V | - |
| Factory Pack Quantity | 100 | 60 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.019048 oz | 0.032805 oz | - |