| PartNumber | DS1388Z-33+ | DS1388Z-3+ | DS1388Z-3+T\u0026R |
| Description | Real Time Clock I2C RTC/Supervisor w/Trickle Charger | Real Time Clock I2C RTC/Supervisor w/Trickle Charger | Real Time Clock I2C RTC/Supervisor w/Trickle Charger |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SOIC-8 | SOIC-8 |
| RTC Bus Interface | Serial, I2C | Serial, I2C | Serial, I2C |
| Date Format | YY-MM-DD | DW:DM:M:Y | DW:DM:M:Y |
| Time Format | HH:MM:SS:hh | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| RTC Memory Size | 512 B | 512 B | 512 B |
| Supply Voltage Max | 3.63 V | 3.3 V | 3.3 V |
| Supply Voltage Min | 2.97 V | 2.7 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 | Reel |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | DS1388Z | DS1388Z | DS1388Z |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 250 uA | - | - |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 100 | 100 | 2500 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1388Z+033 DS1388Z | 90-1388Z+003 DS1388Z | 90-1388Z+3TR DS1388Z |
| Unit Weight | 0.019048 oz | 0.019048 oz | 0.019048 oz |
| Function | - | Calendar, Clock | Calendar, Clock |