User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual
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 66: 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].
UBX-13000995 - R12 Early Production Information Appendix
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