Product Specs

4
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Subject: Doc. No.: Rev: 0.6
UMC-STD31BPN Product Specification Page 21 of 55
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Form No.: 2-JT-00022-03_001
UMC-STD31BPN Product Specification
21
M1
VCN33_PMU
3.3V
PMIC
3.3-Voltage output source
reserved for MT6630; the
maximum supply current is
70-mA
M2
VSIM2_PMU
1.8V
PMIC
1.8-Volatge source of SIM2;
the maximum supply current
is 140-mA
M3
VRTC28
2.8V
PMIC
2.8-Voltage source of RTC;
the maximum supply current
is 2-mA
M4
GND
n/a
M5
GND
n/a
M6
GND
n/a
M7
WATCHDOG
DVDD18
1.8V
PU
AD4
GPIO92
WATCHDOG trigger signal
generated from MT2731
M8
PMIC_STATUS_B
0 to 5V
PMIC
When NAD system
completed the booting up,
PMIC will pull this pin low
not only to inform MT2731
that PMIC is ready, but also
as the outgoing status pin
reporting NAD booting is
ended.This pin would be also
connected to VSYS with the
external pull-up resistor of
100K-OHM
M9
GND
n/a
M10
GND
n/a
M11
GND
n/a
M12
GND
n/a
M13
GND
n/a
M14
GND
n/a
M15
GND
n/a
M16
GND
n/a
M17
GND
n/a