Quectel BC95

NB-IoT Module Series
BC95 Hardware Design
BC95_Hardware_Design Confidential / Released 17 / 51
DBG_
TXD
20
DO
Transmit data
V
OL
max=0.4V
V
OH
min=2.4V
If unused, keep these
pins open.
USIM Interface
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
interface 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 card reset
V
OL
max=0.4V
V
OH
min=2.4V
USIM_
DATA
40
IO
USIM card 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 card clock
V
OL
max=0.4V
V
OH
min=2.4V
USIM_
GND
42
USIM card 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, 3~14,
16, 17,
22, 23,
24, 25,
27, 28,
31~33,
35~37,
44, 49,
50,
55~58,
67~70,
75~80,
84~91
Reserved
Keep these pins
unconnected.
Quectel
Confidential