Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 Appendix Page 112 of 119
No SARA-G3
Pin Name Description
SARA-U2
Pin Name Description
SARA-R4
Pin Name Description
SARA-N2
Pin Name Description Remarks for migration
23 GPIO2 / RSVD GPIO (G340/G350)
Reserved (G300/G310)
V_INT level (1.8 V)
Default: GNSS supply enable
Driver strength: 6 mA
GPIO2 GPIO
V_INT level (1.8 V)
Default: GNSS supply enable
Driver strength: 1 mA
GPIO2 GPIO
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 2 mA
RSVD Reserved GPIO vs Reserved
24 GPIO3 /
32K_OUT
GPIO (G340/G350)
32 kHz Output (G300/G310)
V_INT level (1.8 V)
Default: GNSS data ready
Driver strength: 5 mA
GPIO3 GPIO
V_INT level (1.8 V)
Default: GNSS data ready
Driver strength: 6 mA
GPIO3 GPIO
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 2 mA
GPIO2 GPIO
37
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 1 mA
Diverse driver strength
25 GPIO4 / RSVD GPIO (G340/G350)
Reserved (G300/G310)
V_INT level (1.8 V)
Default: GNSS RTC sharing
Driver strength: 6 mA
GPIO4 GPIO
V_INT level (1.8 V)
Default: GNSS RTC sharing
Driver strength: 6 mA
GPIO4 GPIO
V_INT level (1.8 V)
Default: Output/Low
Driver strength: 2 mA
RSVD Reserved GPIO vs Reserved
26 SDA /
RSVD
I
2
C Data I/O (G340/G350)
Reserved (G300/G310)
V_INT level (1.8 V)
Open drain
No internal pull-up
SDA I
2
C Data I/O /
AUX UART in (‘04’ version)
V_INT level (1.8 V)
Open drain
No internal pull-up
SDA I
2
C Data I/O
36
V_INT level (1.8 V)
Open drain
Internal 2.2 k pull-up
SDA I
2
C Data I/O
37
V_INT level (1.8 V)
Open drain
No internal pull-up
Internal vs No internal pull-up
27 SCL /
RSVD
I
2
C Clock Out (G340/G350)
Reserved (G300/G310)
V_INT level (1.8 V)
Open drain
No internal pull-up
SCL I
2
C Clock Output /
AUX UART out (‘04’ version)
V_INT level (1.8 V)
Open drain
No internal pull-up
SCL I
2
C Clock Output
36
V_INT level (1.8 V)
Open drain
Internal 2.2 k pull-up
SCL I
2
C Clock Output
37
V_INT level (1.8 V)
Open drain
No internal pull-up
Internal vs No internal pull-up
28 RXD_AUX Aux UART Data Out
V_INT level (1.8 V)
USB_D- USB Data I/O (D-)
High-Speed USB 2.0
USB_D- USB Data I/O (D-)
High-Speed USB 2.0
RSVD Reserved USB / AUX UART vs Reserved
TestPoint recommended for SARA-
G3/U2/R4 modules
29 TXD_AUX Aux UART Data In
V_INT level (1.8 V)
USB_D+ USB Data I/O (D+)
High-Speed USB 2.0
USB_D+ USB Data I/O (D+)
High-Speed USB 2.0
RSVD Reserved USB / AUX UART vs Reserved
TestPoint recommended for SARA-
G3/U2/R4 modules
30 GND Ground GND Ground GND Ground GND Ground
31 RSVD /
EXT32K
Reserved (G340/G350)
32 kHz Input (G300/G310)
RSVD Reserved RSVD Reserved RSVD Reserved 32 kHz Input vs Reserved
32 GND Ground GND Ground GND Ground GND Ground
33 RSVD It must be connected to GND RSVD It must be connected to GND RSVD It can be connected to GND RSVD It can be connected to GND
36
Not supported by “00” and “01” product versions
37
Not supported by “02” product versions