Data Sheet

Table Of Contents
SARA-R4/N4 series - Data Sheet
UBX-16024152 - R16 Pin definition Page 16 of 39
No
Name
Power
domain
I/O
Description
Remarks
7
RI
GDI
O
UART ring indicator
Circuit 125 (RI) in ITU-T V.24.
See section 4.2.12 for detailed electrical specs.
8
DCD
GDI
O
UART data carrier detect
Circuit 109 (DCD) in ITU-T V.24.
See section 4.2.12 for detailed electrical specs.
9
DTR
GDI
I
UART data terminal
ready
Circuit 108/2 (DTR) in ITU-T V. 24.
Internal active pull-up to V_INT.
See section 4.2.12 for detailed electrical specs.
10
RTS
GDI
I
UART ready to send
Circuit 105 (RTS) in ITU-T V.24.
Internal active pull-up to V_INT.
Flow control is not supported by the “00”, “01” and
SARA-R410M-02B product versions
See section 4.2.12 for detailed electrical specs.
11
CTS
GDI
O
UART clear to send
Circuit 106 (CTS) in ITU-T V.24.
Flow control is not supported by the “00”, “01” and
SARA-R410M-02B product versions
See section 4.2.12 for detailed electrical specs.
12
TXD
GDI
I
UART data input
Circuit 103 (TxD) in ITU-T V.24.
Internal pull-down to GND on “00” and R410M-02 versions
Internal pull-up to V_INT on other product versions
See section 4.2.12 for detailed electrical specs.
13
RXD
GDI
O
UART data output
Circuit 104 (RxD) in ITU-T V.24.
See section 4.2.12 for detailed electrical specs.
14
GND
-
N/A
Ground
All the GND pins must be connected to ground
15
PWR_ON
POS
I
Power-on / power-off
input
Internal 200 k pull-up resistor.
See section 4.2.8 for detailed electrical specs.
Provide test point for diagnostic purposes.
16
GPIO1
GDI
I/O
GPIO
Configurable GPIO (see section 2.7).
See section 4.2.12 for detailed electrical specs.
17
VUSB_DET
USB
I
USB detect input
Input for VBUS (5 V typical) USB supply sense.
See section 4.2.11 for detailed electrical specs.
Provide test point for diagnostic purposes.
18
RESET_N
ERS
I
External reset input
Internal 37 k pull-up resistor to V_INT.
See section 4.2.9 for detailed electrical specs.
Provide test point for diagnostic purposes.
19
GPIO6
GDI
I/O
GPIO
Configurable GPIO (see section 2.7).
See section 4.2.12 for detailed electrical specs.
20
GND
-
N/A
Ground
All the GND pins must be connected to ground
21
GND
-
N/A
Ground
All the GND pins must be connected to ground
22
GND
-
N/A
Ground
All the GND pins must be connected to ground
23
GPIO2
GDI
I/O
GPIO
Configurable GPIO (see section 2.7).
See section 4.2.12 for detailed electrical specs.
24
GPIO3
GDI
I/O
GPIO
Configurable GPIO (see section 2.7).
See section 4.2.12 for detailed electrical specs.
25
GPIO4
GDI
I/O
GPIO
Configurable GPIO (see section 2.7).
See section 4.2.12 for detailed electrical specs.
26
SDA
DDC
I/O
I
2
C bus data line
Fixed open drain.
Internal 2.2 k pull-up resistor to V_INT.
Not supported by “00” and “01” product versions
See section 4.2.13 for detailed electrical specs.