| PartNumber | DS1338C-18# | DS1338C-33# | DS1338C-3# |
| Description | Real Time Clock I2C Serial RTC w/56 Byte NV RAM | Real Time Clock I2C Serial RTC w/56 Byte NV RAM | Real Time Clock I2C Serial RTC w/56 Byte NV RAM |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | E | E | E |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-16 | SOIC-16 | SOIC-16 |
| RTC Bus Interface | Serial | Serial | Serial |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| RTC Memory Size | 56 B | 56 B | 56 B |
| Supply Voltage Max | 1.89 V | 5.5 V | 3.3 V |
| Supply Voltage Min | 1.71 V | 3 V | 2.7 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | Tube |
| Function | Calendar, Clock | Calendar, Clock | Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1338C | DS1338C | DS1338C |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 46 | 46 | 46 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1338C#018 DS1338C | 90-1338C#033 DS1338C | 90-1338C#003 DS1338C |
| Unit Weight | 0.023492 oz | 0.023492 oz | 0.023492 oz |