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| PartNumber | DS1344E-33+ | DS1344E-3+ | DS1344E-3+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 | - |
| Package / Case | TSSOP-20 | TSSOP-20 | - |
| RTC Bus Interface | Serial, 3-Wire, SPI | Serial, 3-Wire, SPI | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 3 V | 2.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tube | Tube | Reel |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | - |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1344E | DS1344E | DS1344E |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 250 nA | - | - |
| 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 | 90-1344E+033 DS1344E | 90-1344E+003 DS1344E | 90-1344E+3TR DS1344E |
| Unit Weight | 0.006737 oz | 0.006737 oz | - |
| Date Format | - | DW:DM:M:Y | - |
| Time Format | - | HH:MM:SS | - |
| RTC Memory Size | - | 96 B | - |