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DBG_
20
TXD
USIM Interface
Pin Name
Pin No.
USIM_
38
VDD
USIM_
39
RST
USIM_
40
DATA
USIM_
41
CLK
USIM_
42
GND
RF Interface
Pin Name
Pin No.
RF_ANT
53
RESERVED Pins
Pin Name
Pin No.
1, 3~14,
16, 17,
22, 23,
24, 25,
27, 28,
31~33,
RESERVED
35~37,
44, 49,
50,
55~58,
67~70,
75~80,
84~91
BC95_Hardware_Design
DO
Transmit data
I/O
Description
Power supply for USIM
DO
card
DO
USIM card reset
IO
USIM card data
DO
USIM card clock
USIM card ground
I/O
Description
IO
RF antenna pad
I/O
Description
Reserved
Confidential / Released
NB-IoT Module Series
BC95 Hardware Design
V
max=0.4V
OL
V
min=2.4V
OH
DC Characteristics
Vnorm=3.0V
V
max=0.4V
OL
V
min=2.4V
OH
V
max=0.4V
OL
V
min=2.4V
OH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=2.1V
IH
V
max=3.3V
IH
V
max=0.4V
OL
V
min=2.4V
OH
DC Characteristics
Impedance of 50Ω
DC Characteristics
If unused, keep these
pins open.
Comment
All signals of USIM
interface should be
protected against ESD
with a TVS diode
array.
Maximum trace length
from the module pad
to USIM card
connector is 200mm.
Comment
Comment
Keep these pins
unconnected.
17 / 51
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