| PartNumber | DS12C887+ | DS12C887A+ | DS12CR887-33+ |
| Description | Real Time Clock RTC | Real Time Clock RTC | Real Time Clock RTC w/Constant V Trickle Charger |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | Y |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | EDIP-24 | eDIP-24 | EDIP-24 |
| RTC Bus Interface | Multiplexed | Multiplexed | Multiplexed |
| Date Format | YY-MM-DD-dd, Binary | YY-MM-DD-dd, Binary | YY-MM-DD-dd, Binary |
| Time Format | HH:MM:SS, Binary | HH:MM:SS, Binary | HH:MM:SS, Binary |
| RTC Memory Size | 113 B | 113 B | 114 B |
| Supply Voltage Max | 5.5 V | 5.5 V | 3.63 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 2.97 V |
| Minimum Operating Temperature | 0 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 85 C |
| Packaging | Tube | Tube | Tube |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS12C887 | DS12C887A | DS12CR887 |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 14 | 14 | 14 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-12887+C06 DS12C887 | 90-12887+C07 DS12C887A | 90-12887+C0B DS12CR887 |
| Unit Weight | 0.331575 oz | - | - |
| Battery Backup Switching | - | - | Backup Switching |