| PartNumber | DS1340Z-18+ | DS1340Z-3 | DS1340Z-18 |
| 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 | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SOIC-8 | SOIC-8 |
| RTC Bus Interface | Serial, I2C | Serial | Serial |
| Date Format | DW:DM:M:Y | - | - |
| 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 | 3.3 V | 1.89 V |
| Supply Voltage Min | 1.71 V | 2.7 V | 1.71 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 | - | - |
| Series | DS1340Z | DS1340Z | DS1340Z |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Type | Real Time Clock | Real Time Clocks | Real Time Clocks |
| Factory Pack Quantity | 100 | 100 | 100 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1340Z+018 DS1340Z | DS1340Z | DS1340Z |
| Unit Weight | 0.019048 oz | 0.019048 oz | 0.019048 oz |