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DBG_RXD
38
DBG_TXD
39
RI Interface
Pin Name
Pin No.
RI
20
USIM Interface
Pin Name
Pin No.
USIM_VDD
14
USIM_CLK
13
USIM_RST
12
USIM_DATA
11
USIM_GND
10
Antenna Interface
Pin Name
Pin No.
ANT_RF
35
GPIO Interfaces
Pin Name
Pin No.
GPIO1
3
GPIO2
4
GPIO3
5
BC660K-GL_Hardware_Design
Debug UART
DI
receive
Debug UART
DO
transmit
I/O
Description
DO
Ring indication
I/O
Description
USIM card
PO
power supply
DO
USIM card clock
DO
USIM card reset
DIO
USIM card data
Dedicated
ground for
USIM card
I/O
Description
RF antenna
DIO
interface
I/O
Description
General-purpose
DIO
input/output
General-purpose
DIO
input/output
General-purpose
DIO
input/output
BC660K-GL Hardware Design
V
max = 0.2 × VDD_EXT
IL
V
min = 0.7 × VDD_EXT
IH
max = 0.15 × VDD_EXT
V
OL
min = 0.8 × VDD_EXT
V
OH
DC Characteristics
max = 0.15 × VDD_EXT
V
OL
min = 0.8 × VDD_EXT
V
OH
DC Characteristics
Vnom = 1.8/3.0 V
V
max = 0.15 × USIM_VDD
OL
V
min = 0.8 × USIM_VDD
OH
V
max = 0.15 × USIM_VDD
OL
V
min = 0.8 × USIM_VDD
OH
V
max = 0.2 × USIM_VDD
IL
V
min = 0.7 × USIM_VDD
IH
V
max = 0.15 × USIM_VDD
OL
V
min = 0.8 × USIM_VDD
OH
-
DC Characteristics
-
DC Characteristics
V
max = 0.2 × VDD_EXT
IL
V
min = 0.7 × VDD_EXT
IH
V
max = 0.15 × VDD_EXT
OL
V
min = 0.8 × VDD_EXT
OH
NB-IoT Module Series
VDD_EXT
power domain.
Comment
VDD_EXT
power domain.
Comment
-
Comment
50 Ω
characteristic
impedance
Comment
VDD_EXT
power domain.
If unused, keep
these pins open.
18 / 57
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