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| PartNumber | ISL1208IB8 | ISL1208IB8-TK | ISL1208IB82-TK |
| Description | IC RTC CLK/CALENDAR I2C 8-SOIC | IC RTC CLK/CALENDAR I2C 8-SOIC | |
| Manufacturer | Intersil | - | - |
| Product Category | Clock/Timing - Real Time Clocks | - | - |
| Series | - | - | - |
| Type | Clock/Calendar | - | - |
| Packaging | Tube | - | - |
| Package Case | 8-SOIC (0.154", 3.90mm Width) | - | - |
| Operating Temperature | -40°C ~ 85°C | - | - |
| Mounting Type | Surface Mount | - | - |
| Features | Alarm, Leap Year, SRAM | - | - |
| Interface | I2C, 2-Wire Serial | - | - |
| Voltage Supply | 2.7 V ~ 5.5 V | - | - |
| Supplier Device Package | 8-SOIC | - | - |
| Memory Size | 2B | - | - |
| Time Format | HH:MM:SS (12/24 hr) | - | - |
| Date Format | YY-MM-DD-dd | - | - |
| Voltage Supply Battery | 1.8 V ~ 5.5 V | - | - |
| Current Timekeeping Max | 4μA ~ 6μA @ 3V ~ 5V | - | - |