NB-IoT Module Series
BC66 Hardware Design
BC66_Hardware_Design 14 / 57
3.2. Pin Assignment
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
1
2
3
4
5
6
7
8
9
10
11
12
13
23
24
25
26
27
28
29
30
31
32
33
34
35
RESERVED
ADC0*
SIM_GND
SIM_DATA
GND
RESERVED
RESERVED
RESERVED
RESERVED
TXD_AUX
RXD_AUX
GND
RESERVED
RESERVED
VDD_EXT
RESERVED
R
E
S
E
R
V
E
D
R
I*
P
S
M
_
E
IN
T
R
X
D
T
X
D
N
E
T
L
IG
H
T
*
R
E
S
E
T
S
IM
_
V
D
D
V
B
A
T
_
R
F
POWER
GND
UART
USIM
ANT
RESERVED
45
46
47
48
49
50
51
52
53
54
55
56
57
58
V
B
A
T
_
B
B
G
N
D
1
4
RF_ANT
G
N
D
G
N
D
G
N
D
R
E
S
E
R
V
E
D
T
X
D
_
D
B
G
R
X
D
_
D
B
G
SIM_RST
SIM_CLK
R
E
S
E
R
V
E
D
PWRKEY
SPI_CS*
SPI_SCLK*
SPI_MOSI*
SPI_MISO*
RESERVED
GND
OTHERS
BC66
Top View
SPI
Figure 2: Pin Assignment
1. Keep all reserved pins unconnected.
2.
“*” means under development.
NOTES
