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    | Type | Description | 
|---|---|
| rohs: | RoHS | 
| type: | Clock/Calendar | 
| features: | Alarm, Leap Year, SRAM, Trickle-Charger, Watchdog Timer | 
| interface: | I2C, 2-Wire Serial | 
| date format: | YY-MM-DD-dd | 
| memory size: | 256B | 
| part status: | Active | 
| time format: | HH:MM:SS:hh | 
| mounting type: | Surface Mount | 
| package / case: | 16-VFQFN Exposed Pad | 
| voltage - supply: | 1.7V ~ 3.6V | 
| operating temperature: | -40°C ~ 85°C | 
| supplier device package: | 16-QFN (3x3) | 
| voltage - supply, battery: | 1.5V ~ 3.6V | 
| current - timekeeping (max): | 0.17μA ~ 0.22μA @ 1.8V ~ 3V |