 | |  | |
| PartNumber | DS1244W-120IND+ | DS1244W-120+ | DS1244WP-120+ |
| Description | Real Time Clock 256k NV SRAM w/Phantom Clock | Real Time Clock 256k NV SRAM w/Phantom Clock | Real Time Clock 256k NV SRAM w/Phantom Clock |
| 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 | SMD/SMT |
| Package / Case | EDIP-28 | EDIP-28 | PowerCap-34 |
| RTC Bus Interface | Parallel | Phantom Clock | Parallel |
| Date Format | DW:DM:M:Y | YY-MM-DD-dd | DW:DM:M:Y |
| Time Format | HH:MM:SS:hh | HH:MM:SS:hh | HH:MM:SS:hh |
| RTC Memory Size | 32 kB | 256 kB | 32 kB |
| Supply Voltage Max | 3.63 V | 5 V | 3.63 V |
| Supply Voltage Min | 2.97 V | 3.3 V | 2.97 V |
| Minimum Operating Temperature | - 40 C | 0 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 70 C |
| Packaging | Tube | Tube | Tube |
| Function | Calendar, Clock, NV SRAM Control | Alarm, Calendar, Clock | Calendar, Clock, NV SRAM Control |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1244W | DS1244W | DS1244WP |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 12 | 12 | 40 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1244W+12I DS1244W | 90-1244W+120 DS1244W | 90-1244W+P12 DS1244WP |
| Battery Backup Switching | - | Backup Switching | - |
| Memory Type | - | NV RAM | - |
| Moisture Sensitive | - | - | Yes |