| PartNumber | DS1307Z+ | DS1307Z+T\u0026R | DS1307Z |
| Description | Real Time Clock 64x8 Serial I2C RTC | Real Time Clock 64x8 Serial I2C RTC | Real Time Clock 64x8 Serial I2C RTC |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Real Time Clock | Real Time Clock | Real Time Clock |
| RoHS | Y | Y | N |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-8 | SO-8 | SOIC-8 |
| RTC Bus Interface | Serial, I2C | Serial, I2C | Serial |
| Date Format | YY-MM-DD | YY-MM-DD | - |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| RTC Memory Size | 56 B | 56 B | 56 B |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Packaging | Tube | Reel | Tube |
| Function | Calendar, Clock | Calendar, Clock | Calendar, Clock |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | DS1307Z | DS1307Z | DS1307Z |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Operating Supply Current | 1.5 mA | 1.5 mA | - |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clocks |
| Factory Pack Quantity | 100 | 2500 | 100 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Part # Aliases | 90-1307Z+000 DS1307Z | 90-1307Z+TR0 DS1307Z | 90-1307Z-000 DS1307Z |
| Unit Weight | 0.019048 oz | 0.017870 oz | 0.019048 oz |
| Battery Backup Switching | - | Backup Switching | - |