Function
Voltage range
Interface
Storage capacity
Power supply working current (maximum timing value)
Operating temperature range
Packaging form
Real time clock/calendar circuit
1.0V ~ 5.5V
one ² C
~
0.6μA @ 2V ~ 0.75μA @ 5V
-40°C ~ +85°C
SOP8,MSOP8
Serial timing chip
2.0V ~ 5.5V
3-wire serial port
~
0.3μA @ 2V ~ 1.0μA @ 5V
0°C ~ 70°C
SOP8,MSOP8
Trickle charging timing chip
2.0V ~ 5.5V
3-wire serial port
31 bytes of static RAM
0.3μA @ 2V ~ 1.0μA @ 5V
-40°C ~ +85°C
SOP8,MSOP8