| PartNumber | DS1394U-33+ | DS1393U-33+ |
| Description | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | Real Time Clock Low-V SPI/3-Wire With Trickle Charger |
| Manufacturer | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock |
| RoHS | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | MSOP-10 | uSOP |
| RTC Bus Interface | Serial, 3-Wire, SPI | Serial |
| Date Format | DW:DM:M:Y | - |
| Time Format | HH:MM:SS:hh | HH:MM:SS:hh |
| Battery Backup Switching | Backup Switching | Backup Switching |
| Supply Voltage Max | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.97 V | 2.97 V |
| Minimum Operating Temperature | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C |
| Packaging | Tube | Tube |
| Function | Alarm, Calendar, Clock, Trickle Charger | Alarm, Calendar, Clock, Trickle Charger |
| Product | Real Time Clocks | Real Time Clocks |
| Series | DS1394U | DS1393U |
| Brand | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 50 | 50 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1394U+033 DS1394U | 90-1393U+033 DS1393U |
| Unit Weight | 0.005051 oz | - |