Ublox SARA-N4 Series, Руководство по системной интеграции

Страница: 145 / 157

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 Appendix Page 145 of 157
No SARA-G3
Pin Name Description
SARA-U2
Pin Name Description
SARA-R4
Pin Name Description
SARA-N2
Pin Name Description Remarks for migration
10 RTS UART RTS Input
V_INT level (1.8 V)
Internal pull-up:~58 k
RTS UART RTS Input
V_INT level (1.8 V)
Internal pull-up: ~8 k
RTS UART RTS Input 21
V_INT level (1.8 V)
Internal pull-up: ~100 k
It must be set low to use
UART on ‘00’, ‘01’ product
versions
RTS UART RTS Input 21
VCC level (3.6 V typ.)
Internal pull-up: ~78 k
Diverse level (V_INT vs VCC);
Diverse internal pull-up value;
Diverse functions supported.
11 CTS UART CTS Output
V_INT level (1.8 V)
Driver strength: 6 mA
CTS UART CTS Output
V_INT level (1.8 V)
Driver strength: 6 mA
CTS UART CTS Output 21
V_INT level (1.8 V)
Driver strength: 2 mA
CTS UART CTS Output 21
VCC level (3.6 V typ.)
Driver strength: 1 mA
Configurable as Ring Indicator
or Network Indicator
Diverse level (V_INT vs VCC)
Diverse driver strength.
Diverse functions supported.
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
µ
s min / 80
µ
s 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
21 Not supported by “00”, “01”, SARA-R410M-02B product versions and SARA-N2 modules