 | |  | |
| PartNumber | DS1556WP-120IND+ | DS1556WP-120+ | DS1556WP-120/DS1558D |
| Description | Real Time Clock 1M NV RAM Timekeeper | Real Time Clock 1M 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-34 | PowerCap Module-34 | - |
| RTC Bus Interface | Parallel | Parallel | - |
| Time Format | HH:MM:SS | HH:MM:SS | - |
| RTC Memory Size | 131072 B | 128 kB | - |
| Supply Voltage Max | 3.63 V | 3.63 V | - |
| Supply Voltage Min | 2.97 V | 2.97 V | - |
| Minimum Operating Temperature | - 40 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 70 C | - |
| Packaging | Tube | Tube | - |
| Function | Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1556WP | DS1556WP | - |
| 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 | 90-1556W+P2I DS1556WP | 90-1556W+P12 DS1556WP | - |
| Date Format | - | DW:DM:M:Y | - |