Hardware Design V1.0

NB-IoT Module Series
BC95 Hardware Design
BC95_Hardware_Design Confidential / Released 16 / 45
RI
34
DO
Ring indicator
V
OL
max=0.4V
V
OH
min=2.4V
3.0V power domain.
If unused, keep this
pin open.
Debug Port
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
DBG_
RXD
19
DI
Receive data
V
IL
max=0.6V
V
IH
min=2.1V
V
IH
max=3.3V
If unused, keep these
pins open.
DBG_
TXD
20
DO
Transmit data
V
OL
max=0.4V
V
OH
min=2.4V
If unused, keep these
pins open.
USIM Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USIM_
VDD
38
DO
Power supply for USIM
card
Vnorm=3.0V
All signals of USIM
interfaces should be
protected against ESD
with a TVS diode
array.
Maximum trace length
from the module pad
to USIM card
connector is 200mm.
USIM_
RST
39
DO
USIM reset
V
OL
max=0.4V
V
OH
min=2.4V
USIM_
DATA
40
IO
USIM data
V
OL
max=0.4V
V
OH
min=2.4V
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=2.1V
V
IH
max=3.3V
USIM_
CLK
41
DO
USIM clock
V
OL
max=0.4V
V
OH
min=2.4V
USIM_
GND
42
USIM ground
RF Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RF_ANT
53
IO
RF antenna pad
Impedance of 50Ω
RESERVED Pins
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
RESERVED
1, 5~14,
16, 17,
22, 23,
24, 25,
27, 28,
31~33,
Reserved
Keep these pins
unconnected.
Quectel
Confidential