User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R08 Objective Specification Appendix
Page 182 of 188
SARA-G3
SARA-U2
Pin No
Pin Name
Description
Pin Name
Description
Remarks for migration
25
GPIO4 / RSVD
1.8 V GPIO / Reserved
Default: GNSS RTC sharing
Driver strength: 6 mA
Internal pull-down: ~35 k
GPIO4
1.8 V GPIO
Default: GNSS RTC sharing
Driver strength: 6 mA
Internal pull-down: ~9 k
No functional difference
26
SDA / RSVD
I
2
C Data I/O / Reserved
1.8 V, open drain
Driver strength: 3 mA
SDA
I
2
C Data I/O
1.8 V, open drain
Driver strength: 1 mA
No functional difference
27
SCL / RSVD
I
2
C Clock Output / Reserved
1.8 V, open drain
Driver strength: 3 mA
SCL
I
2
C Clock Output
1.8 V, open drain
Driver strength: 1 mA
No functional difference
28
RXD_AUX
Aux UART Data Out
1.8 V, Driver strength: 5 mA
USB_D-
USB Data I/O (D-)
High-Speed USB 2.0
USB instead of Auxiliary UART
29
TXD_AUX
Aux UART Data In
1.8 V, Internal pull-up:~18 k
USB_D+
USB Data I/O (D+)
High-Speed USB 2.0
USB instead of Auxiliary UART
30
GND
Ground
GND
Ground
31
RSVD / EXT32K
Reserved / 32 kHz Input
RSVD
Reserved
No functional difference
32
GND
Ground
GND
Ground
33
RSVD
Reserved
RSVD
Reserved
No functional difference
34
I2S_WA / RSVD
I
2
S Word Alignment / Reserved
1.8 V, Driver strength: 6 mA
I2S_WA
I
2
S Word Alignment
1.8 V, Driver strength: 2 mA
No functional difference
35
I2S_TXD / RSVD
I
2
S Data Output / Reserved
1.8 V, Driver strength: 5 mA
I2S_TXD
I
2
S Data Output
1.8 V, Driver strength: 2 mA
No functional difference
36
I2S_CLK / RSVD
I
2
S Clock / Reserved
1.8 V, Driver strength: 5 mA
I2S_CLK
I
2
S Clock
1.8 V, Driver strength: 2 mA
No functional difference
37
I2S_RXD / RSVD
I
2
S Data Input / Reserved
1.8 V, Internal pull-down:~18 k
I2S_RXD
I
2
S Data Input
1.8 V, Inner pull-down: ~9 k
No functional difference
38
SIM_CLK
SIM Clock Output
SIM_CLK
SIM Clock Output
No functional difference
39
SIM_IO
SIM Data I/O
SIM_IO
SIM Data I/O
No functional difference
40
SIM_RST
SIM Reset Output
SIM_RST
SIM Reset Output
No functional difference
41
VSIM
SIM Supply Output
VSIM
SIM Supply Output
No functional difference
42
SIM_DET
SIM Detection Input
1.8 V, Internal pull-down:~18 k
SIM_DET
SIM Detection Input
1.8 V, Inner pull-down: ~9 k
No functional difference
43
GND
Ground
GND
Ground
44
SPK_P / RSVD
Analog Audio Out (+) / Reserved
RSVD
Reserved
Analog audio not supported
45
SPK_N / RSVD
Analog Audio Out (-) / Reserved
RSVD
Reserved
Analog audio not supported
46
MIC_BIAS / RSVD
Microphone Supply Out / Reserved
RSVD
Reserved
Analog audio not supported
47
MIC_GND / RSVD
Microphone Ground / Reserved
RSVD
Reserved
Analog audio not supported
48
MIC_N / RSVD
Analog Audio In (-) / Reserved
RSVD
Reserved
Analog audio not supported
49
MIC_P / RSVD
Analog Audio In (+) / Reserved
RSVD
Reserved
Analog audio not supported
50
GND
Ground
GND
Ground
51-53
VCC
Module Supply Input
Normal op. range:
3.35 V – 4.5 V
Extended op. range:
3.00 V – 4.5 V
VCC
Module Supply Input
Normal op. range:
3.3 V – 4.4 V
Extended op. range:
3.1 V – 4.5 V
No functional difference
54-55
GND
Ground
GND
Ground
56
ANT
RF Antenna I/O
ESD immunity (IEC 61000-4-2):
±4 kV contact / ±8 kV air ESD
ANT
RF Antenna I/O
ESD immunity (IEC 61000-4-2):
±2 kV contact / ±4 kV air ESD
No functional difference
57-61
GND
Ground
GND
Ground
62
ANT_DET / RSVD
Antenna Detection Input / Reserved
ANT_DET
Antenna Detection Input
No functional difference
63-96
GND
Ground
GND
Ground
Table 53: SARA-G3 and SARA-U2 pin assignment with remarks for migration
For the detailed functional description of each interface of SARA-G3 and SARA-U2 series modules see the
related section in the section 1, whereas for detailed design-in see the related section in the chapter 2.
For the detailed electrical characteristics of each interface of SARA-G3 and SARA-U2 series modules see the
SARA-G3 series Data Sheet [1] and the SARA-U2 series Data Sheet [2].