| PartNumber | ISL1208IB8Z-TK | ISL1208IB8Z | ISL1208IB8Z-T7A |
| Description | Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD | Real Time Clock I2C REAL TIME CLOCK/ CALENDAR 8LD | Real Time Clock I2CAL TIME CLK/CLNDR 8LD |
| Manufacturer | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| 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 | DW:DM:M:Y | DW:DM:M:Y | DW:DM:M:Y |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| RTC Memory Size | 2 B | 2 B | 2 B |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2.7 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 | Reel | Tube | Reel |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock |
| Height | 1.5 mm (Max) | 1.5 mm (Max) | 1.5 mm (Max) |
| Length | 5 mm (Max) | 5 mm (Max) | 5 mm (Max) |
| Product | Real Time Clocks | Real Time Clocks | Real Time Clocks |
| Series | ISL1208 | ISL1208 | ISL1208 |
| Width | 4 mm (Max) | 4 mm (Max) | 4 mm (Max) |
| Brand | Renesas / Intersil | Renesas / Intersil | Renesas / Intersil |
| Product Type | Real Time Clock | Real Time Clock | Real Time Clock |
| Factory Pack Quantity | 1000 | 100 | 250 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Unit Weight | 0.002540 oz | 0.002540 oz | 0.002540 oz |