| PartNumber | DS1305E+T\u0026R | DS1305E+ | DS1305+ |
| Description | Real Time Clock Serial Alarm RTC 3-Wire | Real Time Clock Serial Alarm RTC 3-Wire | Real Time Clock Serial Alarm RTC 3-Wire |
| 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 | Through Hole |
| Package / Case | TSSOP-20 | TSSOP-20 | DIP-16 |
| RTC Bus Interface | Serial | Serial, 3-Wire, SPI | Serial, 3-Wire, SPI |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| RTC Memory Size | 96 B | 96 B | 96 B |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2 V | 2 V | 2 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Reel | Tube | Tube |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1305E | DS1305E | DS1305 |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 2500 | 74 | 25 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1305E+TRL DS1305E | 90-1305E+000 DS1305E | 90-13050+000 DS1305 |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.057419 oz |
| Date Format | - | DM:M:DW:Y | YY-MM-DD |
| Operating Supply Current | - | 1.28 mA | 1.28 mA |