| PartNumber | DS1374U-3+T\u0026R | DS1374U-3+ | DS1374U-18+ |
| Description | Real Time Clock I2C 32-Bit Binary Counter Watchdog | Real Time Clock I2C 32-Bit Binary Counter Watchdog | Real Time Clock I2C 32-Bit Binary Counter Watchdog |
| 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 | SMD/SMT |
| Package / Case | uSOP-10 | uSOP-10 | uSOP-10 |
| RTC Bus Interface | Serial | Serial, I2C | Serial, I2C |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| RTC Memory Size | 3 B | 32 B | 32 B |
| Supply Voltage Max | 3.3 V | 3.3 V | 1.89 V |
| Supply Voltage Min | 2.97 V | 2.7 V | 1.71 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Tube | Tube |
| Function | Watchdog Timekeeper | Alarm, Binary Counter, Watchdog Timekeeper | Alarm, Binary Counter, Watchdog Timekeeper |
| Memory Type | NV RAM | NV RAM | NV RAM |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1374U | DS1374U | DS1374U |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 300 uA | - | - |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 3000 | 50 | 50 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1374U+3TR DS1374U | 90-1374U+003 DS1374U | 90-1374U+018 DS1374U |
| Unit Weight | 0.000818 oz | 0.000818 oz | - |
| Date Format | - | Binary | Binary |
| Time Format | - | Binary | Binary |