Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 Appendix Page 108 of 119
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 Figure 59. 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 6 0 5 8 5 7 55 54
22 23 25 26 2 8 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 6 7 68 69 70
71 72 73 74 75 76
77 78
79 8 0
81 8 2
83 8 4
85 86 8 7 88 89 9 0
91 92 9 3 94 95 9 6
CTS
RTS
DCD
RI
V_INT
RSV D
GND
GPIO6
RESET_N
GPIO1
PWR_ON
RXD
TXD
3
20
17
14
9
6
24 27 30
51
48
45
40
37
34
5962 56
GND
GND
DSR
DT R
GND
VUSB_DET
GND
GND
USB_D-
USB_D+
RSVD
GND
GPIO2 GPIO3
SDA
SCL
GPIO4
GND GND
GND
SDIO_D2
SDIO_CMD
SDIO_D0
SDIO_D1
GND
VCC
VCC
RSV D
I2S_TXD/ SPI_CS
I2S_CLK/ SPI_CLK
SIM _CLK
SIM _IO
VSIM
GPIO5
VCC
SDIO_D3
SDIO_CLK
SIM _RST
I2S_RXD/ SPI_MISO
I2S_WA/ SPI_M OSI
GND GND GND GND GND GND GND GND GND
ANT_DET
ANT
SARA-R4/N4
Top View
Pin 65-96 : GND
64 63 6 1 60 5 8 5 7 55 54
22 23 25 26 2 8 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 6 6 6 7 68 69 70
71 72 73 74 75 76
77 78
79 8 0
81 82
83 84
85 8 6 8 7 88 89 90
91 92 93 94 9 5 96
CTS
RTS
DCD
RI
V_INT
V_BCKP
GND
RSV D
RESET_N
GPIO1
PWR_ON
RXD
TXD
3
20
17
14
9
6
24 27 30
51
48
45
40
37
34
5962 5 6
GND
GND
DSR
DTR
GND
RSV D
GND
GND
RXD_AUX
TXD_AUX
RSVD
GND
GPIO2 GPIO3
SDA
SCL
GPIO4
GND GND
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_WA
GND GND GND GND GND GND GND GND GND
ANT_DET
ANT
SARA-G3
Top View
Pin 65-96: GND
64 63 61 6 0 58 57 55 54
22 23 25 26 28 29 3 1 3 2
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 6 6 6 7 68 69 70
71 72 73 74 75 76
77 7 8
79 8 0
81 82
83 84
85 8 6 8 7 88 89 90
91 92 93 9 4 9 5 96
CTS
RTS
DCD
RI
V_INT
V_BCKP
GND
CODEC_CLK
RESET_N
GPIO1
PWR_ON
RXD
TXD
3
20
17
14
9
6
24 27 3 0
51
48
45
40
37
34
5962 5 6
GND
GND
DSR
DTR
GND
VUSB_DET
GND
GND
USB_D-
USB_D+
RSVD
GND
GPIO2 GPIO3
SDA
SCL
GPIO4
GND GND
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_WA
GND GND GND GND GND GND GND GND GND
ANT_DET
ANT
SARA-U2
Top View
Pin 65-96: GND
64 63 61 6 0 58 57 55 54
22 23 25 26 28 29 3 1 3 2
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 6 6 6 7 68 69 70
71 72 73 74 75 76
77 7 8
79 8 0
81 82
83 84
85 8 6 8 7 88 89 90
91 92 93 9 4 9 5 96
CTS
RTS
RSVD
RSVD
V_INT
RSVD
GND
RSVD
RESET_N
GPIO1
RSVD
RXD
TXD
3
20
17
14
9
6
24 27 3 0
51
48
45
40
37
34
5962 5 6
GND
GND
RSVD
RSVD
GND
RSVD
GND
GND
RSVD RSVD RSVD
GND
RSVD
GPIO2
SDA
SCL
RSVD
GND GND
GND
RSVD
RSVD
RSVD
RSVD
GND
VCC
VCC
RSVD
RSVD
RSVD
SIM _CLK
SIM _IO
VSIM
RSVD
VCC
RSVD
RSVD
SIM _RST
RSVD
RSVD
GND GND GND GND GND GND GND GND GND
ANT_DET
ANT
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
Table 40 summarizes the interfaces provided by the SARA-G3, SARA-U2, SARA-R4/N4, SARA-N2 modules.
Modules RAT Power System SIM Serial Audio Other
Module supply input
RTC
supply I/O
1.8 V supply Output
Switch
-on input
Switch
-off input
Reset input
SIM interface
SIM detection
UART
UART AUX
SPI
USB
SDIO
DDC (I
2
C)
Analog audio
Digital audio
13/26 MHz output
GPIOs
Network indication
Antenna detection
GNSS via modem
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
Table 40: Summary of SARA-G3, SARA-U2, SARA-R4/N4 and SARA-N2 modules interfaces
SARA modules are also form-factor compatible with the u-blox LISA, LARA and TOBY cellular module families: although
each has a different form factor, the footprints for the TOBY, LISA, SARA and LARA modules have been developed to
ensure layout compatibility.