| PartNumber | M93C66-RMC6TG | M93C66-RDW3TP/K | M93C66-RMB6TG |
| Description | EEPROM 4Kbit MICROWIRE EE 1.8 V to 5.5 V | EEPROM Auto 4-Kb MICROWIRE serial EEPROM | EEPROM 16 Kbit 8 Kbit 4Kbit 2 Kbit and 1 Kbit |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | EEPROM | EEPROM | EEPROM |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UFDFPN-8 | TSSOP-8 | UFDFPN-8 |
| Memory Size | 4 kbit | 4 kbit | 4 kbit |
| Organization | 512 x 8 | 512 x 8, 256 x 16 | 512 x 8, 256 x 16 |
| Interface Type | Serial, 3-Wire, Microwire | Serial, 3-Wire, Microwire | Serial, 3-Wire, Microwire |
| Data Retention | 200 Year | 100 Year | 40 Year |
| Series | M93C66-R | M93C66-A125 | M93C66-R |
| Packaging | Reel | Reel | Reel |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Type | EEPROM | EEPROM | EEPROM |
| Factory Pack Quantity | 5000 | 4000 | 2500 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Tradename | MICROWIREâ?¢ | MICROWIREâ?¢ | - |
| Maximum Clock Frequency | - | 2 MHz | 1 MHz |
| Supply Current Max | - | 1.5 mA | 2 mA |
| Supply Voltage Min | - | 1.8 V | 1.8 V |
| Supply Voltage Max | - | 5.5 V | 5.5 V |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Maximum Operating Temperature | - | + 125 C | + 85 C |
| Qualification | - | AEC-Q100 | - |
| Operating Supply Voltage | - | 5.5 V | 2.5 V, 3.3 V, 5 V |
| Unit Weight | - | 0.005573 oz | 0.002928 oz |
| Access Time | - | - | 200 ns |
| Height | - | - | 0.53 mm |
| Length | - | - | 2 mm |
| Width | - | - | 3 mm |
| Operating Supply Current | - | - | 2 mA |
| Programming Voltage | - | - | 1.8 V to 5.5 V |