| PartNumber | DS1305EN+ | DS1305EN+T\u0026R | DS1305EN |
| 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 | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| RTC Bus Interface | Serial, 3-Wire, SPI | Serial | Serial |
| Date Format | YY-MM-DD | - | - |
| 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 | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Reel | Tube |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1305EN | DS1305EN | DS1305EN |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 1.28 mA | - | - |
| 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 | 90-1305E+N00 DS1305EN | 90-1305E+NTR DS1305EN | 90-1305E-N00 DS1305EN |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.006737 oz |