N27 Hardware User Guide
Chapter 3 Module Pins
Copyright © Neoway Technology Co., Ltd. All rights reserved.
15
3 Module Pins
There are 76 pins on N27 and their pads are introduced in the LGA package.
3.1 Pad Layout
Figure 3-1 shows the pad layout of the N27. The
superscript
1
indicates that the pin is defined to be
supported by the open version.
Figure 3-1 N27 pin definition
13
2
3
4
5
6
7
8
9
10
11
12
74
1
UART0_RXD/UART1_RXD
1
UART0_TXD/UART1_TXD
1
VDDIO_1P8
GND
GPIO_46
GPIO_40
GPIO_42
GPIO_31
GPIO_32
GPIO_33
GPIO_34
GPIO_35
GPIO_36
GND
VBAT
VBAT
GND
USIM_DET
USIM_VCC
USIM_DATA
USIM_CLK
USIM_RESET
GND
I2C2_SDA
1
I2C2_SCL
1
UART2_TXD
73
16
17
18
19
20
21
15
PCM_SYNC
PCM_DIN
PCM_DOUT
PCM_CLK
I2S_MCLK
ADC2
1
ADC4
1
14
UART2_RXD
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
2
3
1
U
A
R
T
2
_
R
T
S
1
U
A
R
T
1
_
T
X
D
/U
A
R
T
2
_
T
X
D
1
G
N
D
U
A
R
T
2
_
C
T
S
1
U
A
R
T
1
_
R
X
D
/U
A
R
T
2
_
R
X
D
1
U
S
B
_
V
D
D
_
3
P
3
_
E
N
U
S
B
_
V
D
D
_
3
P
3
U
S
B
_
V
B
U
S
U
S
B
_
D
M
U
S
B
_
D
P
G
N
D
3
3
3
4
3
6
3
5
U
S
B
_
B
O
O
T
G
P
IO
_
5
1
G
P
IO
_
3
8
G
P
IO
_
3
7
45
56
55
54
53
52
51
50
49
48
47
46
75
57
76
42
41
40
39
38
37
43
44
UART1_CTS
1
UART1_RTS
1
PWRKEY_N
RESERVED
WAKEUP_IN
WAKEUP_OUT
STATUS
NET_LIGHT
7
2
7
1
7
0
6
9
6
8
6
7
6
6
6
5
6
4
6
2
6
3
6
1
6
0
5
8
5
9
A
N
T
_
G
N
S
S
1
P
P
S
1
G
N
D
G
N
D
G
N
S
S
_
L
N
A
_
E
N
G
N
D
S
P
I4
_
M
O
S
I
1
S
P
I4
_
M
IS
O
1
S
P
I4
_
C
L
K
1
S
P
I4
_
C
S
_
N
1
G
P
IO
_
4
7
G
P
IO
_
4
5
G
N
D
A
N
T
G
N
D
N27
Top View
G
N
D
G
N
D
G
N
D
G
N
D
