The M48T212V operates from 3.0V to 3.6V, and is rated
for Commercial (0°C to 70°C) temperature applications.
It also comes in ST's 44-pin SNAPHAT® SOIC package
with the battery and crystal placed in a removable/ replaceable
SNAPHAT top.
The Battery Switchover and Power-fail Write Protect circuits
non-volatize the Real-Time Clock in the event of power failure,
and can be used to non-volatize two banks of external, Low-Power
SRAMs.
The RTC features include Alarm and Watchdog functions, while
Supervisor functions include a Reset Output and two Reset Inputs,
including one for push-button.
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