![]() | |||
| PartNumber | DS1338U-18+ | DS1338U-3+ | DS1338U-18+T\u0026R |
| 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 3.3V EconoReset W/ Pushbutton |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | uSOP-8 | uSOP-8 | - |
| RTC Bus Interface | Serial | Serial, I2C | - |
| Time Format | HH:MM:SS | HH:MM:SS | - |
| RTC Memory Size | 56 B | 56 B | - |
| Supply Voltage Max | 1.89 V | 3.3 V | - |
| Supply Voltage Min | 1.71 V | 2.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | Tube | Reel |
| Function | Calendar, Clock | Calendar, Clock | - |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1338U | DS1338U | DS1338U |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 50 | 50 | 3000 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1338U+018 DS1338U | 90-1338U+003 DS1338U | 90-1338U+18T DS1338U |
| Unit Weight | 0.000832 oz | - | - |
| Date Format | - | DW:DM:M:Y | - |