Hardware Guide
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FIBOCOM MC116-NA Series Hardware Guide Page 15 of 63
Pin Num
Pin Name I/O Level Description
V
OH
min=1.35V
7 VDD_EXT PO 1.8V Module digital level, 1.8V output, 80mA
8 GND G - Ground
9 GND G - Ground
10 GND G - Ground
11 DBG_RXD I
V
IL
min=-0.3V
V
IL
max=0.6V
VIHmin=1.2V
V
IH
max=2.0V
Debug serial port receive data
12 DBG_TXD O
V
OL
max=0.45V
V
OH
min=1.35V
Debug serial port transmit data
13 USIM_PRESENCE I
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
(U)SIM card hot plug detection
14 USIM_VDD PO
For 1.8V (U)SIM:
Vmax=1.9V
Vmin=1.7V
For 3.0V (U)SIM:
Vmax=3.05V
Vmin=2.7V
I
O
max=50mA
(U)SIM power, identify 1.8V or 3V (U)SIM
card automatically
15 USIM_DATA IO
For 1.8V (U)SIM:
V
IL
max=0.6V
V
IH
min=1.2V
V
OL
max=0.45V
V
OH
min=1.35V
For 3.0V (U)SIM:
V
IL
max=1.0V
V
IH
min=1.95V
V
OL
max=0.45V
V
OH
min=2.55V
(U)SIM data signal
16 USIM_CLK O
For 1.8V (U)SIM:
V
OL
max=0.45V
V
OH
min=1.35V
For 3.0V (U)SIM:
V
OL
max=0.45V
(U)SIM clock signal