
M80 Hardware Design
M80_HD_V1.0 - 22 -
Note: Keep all reserved pins open.
3.1.2. Pin description
Table 6: Pin description
Main power supply of
module:
VBAT=3.3V~4.6V
Vmax= 4.6V
Vmin=3.3V
Vnorm=4.0V
Make sure that supply
sufficient current in a
transmitting burst
which typically rises
to 1.6A.
Power supply for RTC
when VBAT is not
supplied for the
system.
Charging for backup
battery or golden
capacitor when the
VImax=VBAT
VImin=2.6V
VInorm=2.8V
VOmax=2.85V
VOmin=2.6V
VOnorm=2.8V
Iout(max)= 730uA
If unused, keep this
pin open.
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