 |  | | |
| PartNumber | DS1338U-18+ | DS1338U-18+T\u0026R | DS1338U-18+TR |
| Description | Real Time Clock I2C Serial RTC w/56 Byte NV RAM | Real Time Clock 3.3V EconoReset W/ Pushbutton | |
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Real Time Clock | Real Time Clock | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | uSOP-8 | - | - |
| RTC Bus Interface | Serial | - | - |
| Time Format | HH:MM:SS | - | - |
| RTC Memory Size | 56 B | - | - |
| Supply Voltage Max | 1.89 V | - | - |
| Supply Voltage Min | 1.71 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tube | Reel | - |
| Function | Calendar, Clock | - | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1338U | DS1338U | - |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 50 | 3000 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Part # Aliases | 90-1338U+018 DS1338U | 90-1338U+18T DS1338U | - |
| Unit Weight | 0.000832 oz | - | - |