 |  | | |
| PartNumber | DS1344E-18+T\u0026R | DS1344E-18+ | DS1344E-18+TR |
| Description | Real Time Clock Low-Current SPI/3-Wire RTC | Real Time Clock Low-Current SPI/3-Wire RTC | |
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Real Time Clock | Real Time Clock | - |
| RoHS | Y | Y | - |
| Packaging | Reel | Tube | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1344E | DS1344E | - |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 2500 | 74 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Part # Aliases | 90-1344E+18T DS1344E | 90-1344E+018 DS1344E | - |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | TSSOP-20 | - |
| RTC Bus Interface | - | Serial, 3-Wire, SPI | - |
| Date Format | - | DW:DM:M:Y | - |
| Time Format | - | HH:MM:SS | - |
| Battery Backup Switching | - | Backup Switching | - |
| RTC Memory Size | - | 96 B | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 1.71 V | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Function | - | Alarm, Calendar, Clock | - |
| Operating Supply Current | - | 250 nA | - |
| Unit Weight | - | 0.006737 oz | - |