Specifications

M80 Hardware Design
M80_HD_V1.0 - 27 -
VDD_EXT+0.3
SIM2 interface
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
SIM2_
VDD
107
O
Power supply for SIM
card
The voltage can be
selected by software
automatically. Either
1.8V or 3V.
Not supported at
present.
SIM2_
DATA
109
I/O
SIM data
3V：
VOLmax=0.4
VOHmin=
SIM1_VDD-0.4
1.8V:
VOLmax=
0.15*SIM1_VDD
VOHmin=
SIM1_VDD-0.4
SIM2_
CLK
108
O
SIM clock
3V：
VOLmax=0.4
VOHmin=
0.9*SIM1_VDD
1.8V:
VOLmax=
0.12*SIM1_VDD
VOHmin=
0.9*SIM1_VDD
SIM2_
RST
95
O
SIM reset
3V：
VOLmax=0.36
VOHmin=
0.9*SIM1_VDD
1.8V:
VOLmax=
0.2*SIM1_VDD
VOHmin=
0.9*SIM1_VDD
ADC
PIN NAME
PIN
NO.
I/O
DESCRIPTION
DC
CHARACTERISTICS
COMMENT
ADC0
2
I
General purpose
analog to digital
converter.
Voltage range: 0V to
2.8V
If unused, keep these
pins open.
ADC1
1
I
General purpose
analog to digital
Voltage range: 0V to
2.8V
If unused, keep these
pins open.
Quectel
Confidential