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Function
Pin Name
Module
Digital
I2S_CLK
SARA-G350
Audio
I2S_RXD
SARA-G350
I2S_TXD
SARA-G350
I2S_WA
SARA-G350
GPIO
GPIO1
SARA-G350
GPIO2
SARA-G350
GPIO3
SARA-G350
GPIO4
SARA-G350
Reserved
RSVD
All
RSVD
All
RSVD
SARA-G350
RSVD
SARA-G300
SARA-G310
RSVD
SARA-G300
SARA-G310
Table 3: SARA-G3 series modules pin definition, grouped by function
UBX-13000995 - R06
SARA-G3 series - System Integration Manual
Pin No
I/O
Description
2
36
O
I
S clock
2
37
I
I
S receive data
2
35
O
I
S transmit data
2
34
O
I
S word
alignment
16
I/O
GPIO
23
I/O
GPIO
24
I/O
GPIO
25
I/O
GPIO
33
N/A
RESERVED pin
17, 19
N/A
RESERVED pin
31
N/A
RESERVED pin
16, 23,
N/A
RESERVED pin
25-27,
34-37
44-49,
N/A
RESERVED pin
62
Objective Specification
Remarks
1.8 V clock output for PCM / normal I
modes.
See section
1.10.21.10.2
for functional description.
See section
2.6.22.6.2
for external circuit
design-in.
2
1.8 V data input for PCM / normal I
Internal active pull-down to GND.
See section
1.10.21.10.2
for functional description.
See section
2.6.22.6.2
for external circuit
design-in.
1.8 V data output for PCM / normal I
See section
1.10.21.10.2
for functional description.
See section
2.6.22.6.2
for external circuit
design-in.
1.8 V word al. output for PCM / normal I
modes
See section
1.10.21.10.2
for functional description.
See section
2.6.22.6.2
for external circuit
design-in.
1.8 V GPIO by default configured as pad
disabled.
See section
1.111.11
for functional description.
See section
2.72.7
for external circuit design-in.
1.8 V GPIO by default configured to provide the
custom GNSS supply enable function.
See section
1.111.11
for functional description.
See section
2.72.7
for external circuit design-in.
1.8 V GPIO by default configured to provide the
custom GNSS data ready function.
See section
1.111.11
for functional description.
See section
2.72.7
for external circuit design-in.
1.8 V GPIO by default configured to provide the
custom GNSS RTC sharing function.
See section
1.111.11
for functional description.
See section
2.72.7
for external circuit design-in.
This pin must be connected to ground.
See section
2.82.8
Leave unconnected.
See section
2.82.8
Internally not connected. Leave unconnected.
See section
2.82.8
Pad disabled. Leave unconnected.
See section
2.82.8
Leave unconnected.
See section
2.82.8
System description
Page 22 of 218
2
S
S modes.
2
S modes.
2
S
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