 | |  | |
| PartNumber | DS1391U-3+ | DS1391U-18+ | DS1391U+33 |
| Description | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | Real Time Clock |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | uSOP-10 | uSOP-10 | uSOP |
| RTC Bus Interface | Serial | Serial | Serial |
| Time Format | HH:MM:SS:hh | HH:MM:SS:hh | HH:MM:SS:hh |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| Supply Voltage Max | 3.3 V | 1.89 V | 5.5 V |
| Supply Voltage Min | 2.7 V | 1.71 V | 2.97 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | - |
| Function | Alarm, Calendar, Clock, Trickle Charger | Alarm, Calendar, Clock, Trickle Charger | Alarm, Calendar, Clock, Trickle Charger |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1391U | DS1391U | DS1391U |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clocks |
| Factory Pack Quantity | 50 | 50 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1391U+003 DS1391U | 90-1391U+018 DS1391U | DS1391U |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Maxim Integrated |
DS1391U-33+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | |
| DS1391U-3+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | ||
| DS1391U-33+T\u0026R | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | ||
| DS1391U-18+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | ||
| DS1391U-3+T\u0026R | Real Time Clock Low-V SPI/3-Wire With Trickle Charger | ||
| DS1391U+33 | Real Time Clock | ||
| DS1391U-3+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charge | ||
| DS1391U-18+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charge | ||
| DS1391U-33+ | Real Time Clock Low-V SPI/3-Wire With Trickle Charge | ||
| DS1391U+33 | Real Time Clock Serial 10-Pin uMAX - Bulk (Alt: DS1391U+33) | ||
| DS1391U-3 | Real Time Clock Low-V SPI/3-Wire With Trickle Charge | ||
| DS1391U-18 | Real Time Clock Low-V SPI/3-Wire With Trickle Charge | ||
| DS1391U-18+TR | New and Original | ||
| DS1391U-3+TR | New and Original | ||
| DS1391U-33+T | New and Original | ||
| DS1391U-33+TR | New and Original | ||
| DS1391U-33TR | New and Original | ||
| DS1391U-33 | Real Time Clock Low-V SPI/3-Wire With Trickle Charge |