User's Manual

SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R18 Advance Information System description
Page 18 of 206
Function Pin Name Module Pin No I/O Description Remarks
GPIO
GPIO1
SARA-G340
SARA-G350
SARA-U2
16
I/O
GPIO
1.8 V GPIO by default configured as pin disabled.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO2
SARA-G340
SARA-G350
SARA-U2
23
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS supply enable function.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO3
SARA-G340
SARA-G350
SARA-U2
24
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS data ready function.
Access by external test-point is recommended.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
GPIO4
SARA-G340
SARA-G350
SARA-U2
25
I/O
GPIO
1.8 V GPIO by default configured to provide the
custom GNSS RTC sharing function.
See section 1.11 for functional description.
See section 2.8 for external circuit design-in.
Reserved
RSVD
All
33
N/A
RESERVED pin
This pin must be connected to ground.
See section 2.9
RSVD
SARA-G3
17, 19
N/A
RESERVED pin
Leave unconnected.
See section 2.9
RSVD
SARA-G340
SARA-G350
SARA-U2
31
N/A
RESERVED pin
Internally not connected. Leave unconnected.
See section 2.9
RSVD
SARA-G300
SARA-G310
16, 23,
25-27,
34-37
N/A
RESERVED pin
Pin disabled. Leave unconnected.
See section 2.9
RSVD
SARA-G300
SARA-G310
SARA-U2
44-49
N/A
RESERVED pin
Leave unconnected.
See section 2.9
RSVD
SARA-G300
SARA-G310
62
N/A
RESERVED pin
Leave unconnected.
See section 2.9
Table 3: SARA-G3 and SARA-U2 series modules pin definition, grouped by function