 |  | | |
| PartNumber | DS1643-100+ | DS1643-070 | DS1643-120 |
| Description | Real Time Clock NV Timekeeping RAM | Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP | |
| Manufacturer | Maxim Integrated | DALLAS | DALLAS |
| Product Category | Real Time Clock | IC Chips | IC Chips |
| RoHS | Y | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | eDIP-28 | - | - |
| RTC Bus Interface | Parallel | - | - |
| Time Format | HH:MM:SS | - | - |
| RTC Memory Size | 8 kB | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Packaging | Tube | - | - |
| Function | Calendar, Clock, NV Timekeeping RAM | - | - |
| Series | DS1643 | - | - |
| Brand | Maxim Integrated | - | - |
| Product Type | Real Time Clocks | - | - |
| Factory Pack Quantity | 12 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Part # Aliases | 90-16430+100 DS1643 | - | - |