| Type | 
Description | 
| rohs: | 
RoHS | 
| type: | 
Clock/Calendar | 
| features: | 
Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 
| interface: | 
I2C, 2-Wire Serial | 
| date format: | 
YY-MM-DD-dd | 
| memory size: | 
7B | 
| part status: | 
Obsolete | 
| time format: | 
HH:MM:SS:hh (24 hr) | 
| mounting type: | 
Surface Mount | 
| package / case: | 
18-SOX, 18-SOIC with Crystal (7.5mm Width) | 
| voltage - supply: | 
3V ~ 5.5V | 
| operating temperature: | 
-40°C ~ 85°C | 
| supplier device package: | 
18-SOX | 
| voltage - supply, battery: | 
2V ~ 5.5V | 
| current - timekeeping (max): | 
10μA @ 5.5V |