| PartNumber | DS1343E-18+ | DS1343E-3+ | DS1343E-18+T\u0026R |
| Description | Real Time Clock Low-Current SPI/3-Wire RTC | Real Time Clock Low-Current SPI/3-Wire RTC | Real Time Clock Low-Current SPI/3-Wire RTC |
| 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 | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| RTC Bus Interface | Serial, 3-Wire, SPI | Serial, 3-Wire, SPI | Serial, 3-Wire, SPI |
| Date Format | DW:DM:M:Y | MM-DD-YY | MM-DD-YY |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| RTC Memory Size | 96 B | 96 B | 96 B |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 1.71 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 | Tube | Tube | Reel |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1343E | DS1343E | DS1343E |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 600 uA | 600 uA | 600 uA |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 74 | 74 | 2500 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1343E+018 DS1343E | 90-1343E+003 DS1343E | 90-1343E+18T DS1343E |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.006737 oz |