 |  |  | |
| PartNumber | DS1557P-70IND+ | DS1557P-70+ | DS1557P |
| Description | Real Time Clock 4M NV RAM Timekeeper | Real Time Clock 4M NV RAM Timekeeper | |
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Real Time Clock | Real Time Clock | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | PowerCap | PowerCap Module-34 | - |
| RTC Bus Interface | Parallel | Parallel | - |
| Time Format | HH:MM:SS | HH:MM:SS | - |
| Battery Backup Switching | Backup Switching | Backup Switching | - |
| RTC Memory Size | 524288 B | 524288 B | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | - 40 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 70 C | - |
| Packaging | Tray | Tube | - |
| Function | Alarm, Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | Alarm, Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1557P | DS1557P | - |
| Brand | Maxim Integrated | Maxim Integrated | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 40 | 40 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Part # Aliases | 90-1557P+07I DS1557P | 90-1557P+070 DS1557P | - |
| Date Format | - | DW:DM:M:Y | - |
| Operating Supply Current | - | 45 mA | - |