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| Part Number | ISL1218IBZ | ISL1218IUZ |
|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc |
| Product Status | Obsolete | Obsolete |
| Type | Clock/Calendar | Clock/Calendar |
| Features | Alarm, Leap Year, SRAM | Alarm, Leap Year, SRAM |
| Memory Size | 8B | 8B |
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Battery | 1.8V ~ 5.5V | 1.8V ~ 5.5V |
| Current - Timekeeping (Max) | 4µA ~ 6µA @ 3V ~ 5V | 4µA ~ 6µA @ 3V ~ 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-SOIC | 8-MSOP |
