SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11
Appendix
Page 142 of 157
Appendix
A
Migration between SARA modules
A.1
Overview
SARA-G3 2G modules, SARA-U2 3G / 2G modules, SARA-R4/N4 LTE Cat M1/NB1 / 2G modules and SARA-
N2 LTE Cat NB1 modules have exactly the same u-blox SARA form factor (26.0 x 16.0 mm, LGA 96-pin),
with compatible pin assignments, as in
. Any one of the modules can be mounted on a single
application board using exactly the same copper mask, solder mask and paste mask.
64 63
61 60
58 57
55 54
22 23
25 26
28 29
31 32
11
10
8
7
5
4
2
1
21
19
18
16
15
13
12
43
44
46
47
49
50
52
53
33
35
36
38
39
41
42
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
CTS
RTS
DCD
RI
V_INT
RSVD
GND
GPIO6
RESET_N
GPIO1
PW R_ON
RXD
TXD
3
20
17
14
9
6
24
27
30
51
48
45
40
37
34
59
62
56
GND
GND
DSR
DTR
GND
VUSB_DET
GND
GND
U
S
B
_
D
-
U
S
B
_
D
+
R
S
V
D
G
N
D
G
P
IO
2
G
P
IO3
SDA
S
C
L
G
P
IO
4
G
N
D
G
N
D
GND
SDIO_D2
SDIO_CM D
SDIO_D0
SDIO_D1
GND
VCC
VCC
RSVD
I2S_TXD/ SPI_CS
I2S_CLK/ SPI_CLK
SIM _CLK
SIM _IO
VSIM
GPIO5
VCC
SDIO_D3
SDIO_CLK
SIM _RST
I2S_RXD/ SPI_M ISO
I2S_W A/ SPI_M OSI
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
A
N
T
_
D
E
T
A
N
T
SARA-R4/ N4
Top View
Pin 65-96: GND
64 63
61 60
58 57
55 54
22 23
25 26
28 29
31 32
11
10
8
7
5
4
2
1
21
19
18
16
15
13
12
43
44
46
47
49
50
52
53
33
35
36
38
39
41
42
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
CTS
RTS
DCD
RI
V_INT
V_BCKP
GND
RSVD
RESET_N
GPIO1
PW R_ON
RXD
TXD
3
20
17
14
9
6
24
27
30
51
48
45
40
37
34
59
62
56
GND
GND
DSR
DTR
GND
RSVD
GND
GND
R
X
D
_
A
U
X
T
X
D
_
A
U
X
R
S
V
D
G
N
D
G
P
IO
2
G
P
IO
3
SDA
S
C
L
G
P
IO
4
G
N
D
G
N
D
GND
SPK_P
M IC_BIAS
M IC_GND
M IC_P
GND
VCC
VCC
RSVD
I2S_TXD
I2S_CLK
SIM _CLK
SIM _IO
VSIM
SIM _DET
VCC
M IC_N
SPK_N
SIM _RST
I2S_RXD
I2S_W A
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
A
N
T
_
D
E
T
A
N
T
SARA-G3
Top View
Pin 65-96: GND
64 63
61 60
58 57
55 54
22 23
25 26
28 29
31 32
11
10
8
7
5
4
2
1
21
19
18
16
15
13
12
43
44
46
47
49
50
52
53
33
35
36
38
39
41
42
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
CTS
RTS
DCD
RI
V_INT
V_BCKP
GND
CODEC_CLK
RESET_N
GPIO1
PW R_ON
RXD
TXD
3
20
17
14
9
6
24
27
30
51
48
45
40
37
34
59
62
56
GND
GND
DSR
DTR
GND
VUSB_DET
GND
GND
U
S
B
_
D
-
U
S
B
_
D
+
R
S
V
D
G
N
D
G
P
IO
2
G
P
IO
3
SDA
S
C
L
G
P
IO
4
G
N
D
G
N
D
GND
RSVD
RSVD
RSVD
RSVD
GND
VCC
VCC
RSVD
I2S_TXD
I2S_CLK
SIM _CLK
SIM _IO
VSIM
SIM _DET
VCC
RSVD
RSVD
SIM _RST
I2S_RXD
I2S_W A
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
A
N
T
_
D
E
T
A
N
T
SARA-U2
Top View
Pin 65-96: GND
64 63
61 60
58 57
55 54
22 23
25 26
28 29
31 32
11
10
8
7
5
4
2
1
21
19
18
16
15
13
12
43
44
46
47
49
50
52
53
33
35
36
38
39
41
42
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
CTS
RTS
RSVD
RSVD
V_INT
RSVD
GND
RSVD
RESET_N
GPIO1
RSVD
RXD
TXD
3
20
17
14
9
6
24
27
30
51
48
45
40
37
34
59
62
56
GND
GND
RSVD
RSVD
GND
RSVD
GND
GND
R
S
V
D
R
S
V
D
R
S
V
D
G
N
D
R
S
V
D
G
P
IO2
SDA
S
C
L
R
S
V
D
G
N
D
G
N
D
GND
RSVD
RSVD
RSVD
RSVD
GND
VCC
VCC
RSVD
RSVD
RSVD
SIM _CLK
SIM _IO
VSIM
RSVD
VCC
RSVD
RSVD
SIM _RST
RSVD
RSVD
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
G
N
D
A
N
T
_
D
E
T
A
N
T
SARA-N2
Top View
Pin 65-96: GND
Figure 59: SARA-G3, SARA-U2, SARA-R4/N4 and SARA-N2 modules’ layout and pin assignment
summarizes the interfaces provided by the SARA-G3, SARA-U2, SARA-R4/N4, SARA-N2 modules.
Modules
RAT
Power
System
SIM
Serial
Audio
Other
M
odu
le
su
pp
ly
in
pu
t
RTC
su
pp
ly
I/O
1.
8
V
su
pp
ly
Ou
tpu
t
Sw
itc
h-
on
in
pu
t
Sw
itc
h-
of
f
in
pu
t
Rese
t
in
pu
t
SI
M
in
ter
fa
ce
SI
M
dete
cti
on
U
AR
T
U
AR
T
AUX
SPI
U
SB
SD
IO
D
D
C
(I
2
C)
An
al
og
au
di
o
D
igi
tal
au
di
o
13/26
M
Hz
ou
tpu
t
G
PI
Os
N
etw
or
k
in
di
cati
on
An
ten
na
dete
cti
on
G
N
SS
v
ia
mo
dem
SARA-G3
2G
• • • •
• • • • •
• • •
• • • •
SARA-U2
3G, 2G
• • • • • • • • • •
•
•
• • • • • •
SARA-R4/N4
LTE M1 / NB1, 2G
•
• • • • • • •
□
•
□
•
□
□
• • • •
SARA-N2
LTE NB1
•
•
• •
• •
• •
●
= supported by available product version
□
= supported by future product versions
