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| Part Number | ISL12027IBZ | 
| Datasheet | ISL12027IBZ datasheet | 
| Description | IC RTC CLK/CALENDAR I2C 8-SOIC | 
| Manufacturer | Renesas Electronics America Inc. | 
| Series | - | 
| Part Status | Obsolete | 
| Type | Clock/Calendar | 
| Features | Alarm, Leap Year, Supervisor, Watchdog Timer | 
| Memory Size | - | 
| Time Format | HH:MM:SS (12/24 hr) | 
| Date Format | YY-MM-DD-dd | 
| Interface | I²C, 2-Wire Serial | 
| Voltage - Supply | 2.7V ~ 5.5V | 
| Voltage - Supply, Battery | 1.8V ~ 5.5V | 
| Current - Timekeeping (Max) | 10µA ~ 20µA @ 2.7V ~ 5.5V | 
| Operating Temperature | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SOIC |