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| PartNumber | DS1340C-18# | DS1340C-33# | DS1340C-3# |
| Description | Real Time Clock I2C RTC w/Trickle Charger | Real Time Clock I2C RTC w/Trickle Charger | Real Time Clock I2C RTC w/Trickle Charger |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | E | E | E |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-16 | SOIC-16 | SOIC-16 |
| RTC Bus Interface | Serial | Serial | Serial |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| Supply Voltage Max | 1.89 V | 5.5 V | 3.3 V |
| Supply Voltage Min | 1.71 V | 2.97 V | 2.7 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tube | Tube |
| Function | Calendar, Clock, Trickle Charger | Calendar, Clock, Trickle Charger | Calendar, Clock, Trickle Charger |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1340C | DS1340C | DS1340C |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 46 | 46 | 46 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1340C#018 DS1340C | 90-1340C#033 DS1340C | 90-1340C#003 DS1340C |
| Unit Weight | 0.023492 oz | 0.023492 oz | 0.023492 oz |