Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 Appendix Page 111 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
12 TXD UART Data Input
V_INT level (1.8 V)
Internal pull-up:~18 k
TXD UART Data Input
V_INT level (1.8 V)
Internal pull-up: ~8 k
TXD UART Data Input
V_INT level (1.8 V)
Internal pull-up/-down: ~100k
TXD UART Data Input
VCC level (3.6 V typ.)
No internal pull-up/-down
Diverse level (V_INT vs VCC); Diverse
pull-up / pull-down; TestPoint
always recommended
13 RXD UART Data Output
V_INT level (1.8 V)
Driver strength: 6 mA
RXD UART Data Output
V_INT level (1.8 V)
Driver strength: 6 mA
RXD UART Data Output
V_INT level (1.8 V)
Driver strength: 2 mA
RXD UART Data Output
VCC level (3.6 V typ.)
Driver strength: 1 mA
Diverse level (V_INT vs VCC); Diverse
driver strength; TestPoint always
recommended
14 GND Ground GND Ground GND Ground GND Ground
15 PWR_ON Power-on Input
No internal pull-up
L-level: -0.10 V ÷ 0.65 V
H-level: 2.00 V ÷ 4.50 V
ON L-level time:
5 ms min
OFF L-level pulse time:
Not Available
PWR_ON Power-on Input
No internal pull-up
L-level: -0.30 V ÷ 0.65 V
H-level: 1.50 V ÷ 4.40 V
ON L-level pulse time:
50 µs min / 80 µs max
OFF L-level pulse time:
1 s min
PWR_ON Power-on Input
200 k internal pull-up
L-level: -0.30 V ÷ 0.35 V
H-level: 1.17 V ÷ 2.10 V
ON L-level pulse time:
0.15 s min – 3.2 s max
OFF L-level pulse time:
1.5 s min
RSVD Reserved Not supported by N2; Internal vs No
internal pull-up; Diverse voltage
levels; Diverse timings;
Diverse functions supported;
TestPoint recommended for R4
16 GPIO1 / RSVD GPIO (G340/G350)
Reserved (G300/G310)
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 6 mA
GPIO1 GPIO
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 6 mA
GPIO1 GPIO
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 2 mA
GPIO1 GPIO
V_INT level (1.8 V)
Configurable as secondary UART
data output: TestPoint
recommended for diagnostic
Diverse driver strength
TestPoint recommended for N2
17 RSVD Reserved VUSB_DET 5 V, USB Supply Detect Input VUSB_DET 5 V, USB Supply Detect Input RSVD Reserved USB detection vs Reserved;
TestPoint recommended for U2/R4
18 RESET_N Reset input
Internal diode & pull-up
L-level: -0.30 V ÷ 0.30 V
H-level: 2.00 V ÷ 4.70 V
Reset L-level pulse time:
50 ms min (G340/G350)
3 s min (G300/G310)
RESET_N Abrupt shutdown/reset input
10 kΩ internal pull-up
L-level: -0.30 V ÷ 0.51 V
H-level: 1.32 V ÷ 2.01 V
Reset L-level pulse time:
50 ms min
RESET_N Abrupt shutdown input
37 k internal pull-up
L-level: -0.30 V ÷ 0.35 V
H-level: 1.17 V ÷ 2.10 V
OFF L-level pulse time:
10 s min
RESET_N Reset input
78 k internal pull-up
L-level: -0.30 V ÷ 0.36*VCC
H-level: 0.52*VCC ÷ VCC
Reset L-level pulse time:
500 ns min
Diverse internal pull-up
Diverse voltage levels.
Diverse timings.
Diverse functions supported.
TestPoint always recommended
19 RSVD Reserved CODEC_CLK 13 or 26 MHz Output
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 4 mA
GPIO6 GPIO
V_INT level (1.8 V)
Default: Pin disabled
Driver strength: 2 mA
RSVD Reserved Clock / GPIO vs Reserved
20 GND Ground GND Ground GND Ground GND Ground
21 GND Ground GND Ground GND Ground GND Ground
22 GND Ground GND Ground GND Ground GND Ground