| PartNumber | DS1670E+ | DS1670E+T\u0026R | DS1670E |
| Description | Real Time Clock Portable System Controller | Real Time Clock Portable System Controller | Real Time Clock Portable System Controller |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| RTC Bus Interface | Serial, 3-Wire | Serial, 3-Wire | Serial, 3-Wire |
| Date Format | DW:DM:M:Y | DW:DM:M:Y | DW:DM:M:Y |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| Supply Voltage Max | 3.63 V | 3.63 V | 3.63 V |
| Supply Voltage Min | 2.97 V | 2.97 V | 2.97 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Tube | Reel | Tube |
| Function | Alarm, Calendar, Clock, NV SRAM Control, Watchdog Timekeeper | Alarm, Calendar, Clock, NV SRAM Control, Watchdog Timekeeper | Alarm, Calendar, Clock, NV SRAM Control, Watchdog Timekeeper |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1670E | DS1670E | DS1670E |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clocks |
| Factory Pack Quantity | 74 | 2500 | 74 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1670E+000 DS1670E | 90-1670E+TRL DS1670E | 90-1670E-000 DS1670E |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.006737 oz |