Data Sheet

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www.rovingnetworks.com Version 1.04 10/29/2012 6
RN- 171-XV-DS
Figure 2. Pin Pads & Dimensions
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Table 7. Pin Description
Pad
Number
Signal Name
Description
Optional
Function
Direction
1
VDD_3V3
3.3-V regulated power input to the module.
Power
2
UART_TX
UART TX, 8-mA drive, 3.3-V tolerant.
OUT !
3
UART_RX
UART RX, 3.3-V tolerant.
IN "
4
GPIO8
GPIO, 24-mA drive, 3.3-V tolerant. The RN-171-XV drives
GPIO8 HIGH on powerup, which overrides software configured
powerup values, such as set sys value 0x0000 on GPIO8.
I/O
5
RESET
Optional module reset signal (active low), 100-k pull up, apply
pulse of at least 160 us, 3.3-V tolerant.
Input
6
GPIO5
GPIO, 24-mA drive, 3.3-V tolerant.
Data TX/RX
OUT !
7
GPIO7
GPIO, 24-mA drive, 3.3-V tolerant.
I/O
8
GPIO9
Enable ad-hoc mode, restore factory defaults, 8 mA drive, 3.3-V
tolerant.
I/O
9
GPIO1
GPIO, 8-mA drive, 3.3-V tolerant.
I/O
10
GND
Ground.
Ground
11
GPIO14
GPIO, 8-mA drive, 3.3-V tolerant.
I/O
12
UART_RTS
UART RTS flow control, 8-mA drive, 3.3-V tolerant.
OUT !
13
GPIO4/sensor 6
GPIO, 24-mA drive, 3.3-V tolerant/ADC input, (3.3-V tolerant).
Defaults to GPIO4. Note (1)
I/O
14
Not Used
No Connect
15
GPIO6/ sensor 7
GPIO, 24-mA drive, 3.3-V tolerant/ADC input, (3.3-V tolerant).
Defaults to GPIO6. Note (1)
Power
16
UART_CTS
UART CTS flow control, 3.3-V tolerant.
IN "
17
Sensor 5
Sensor interface, analog input to module, (3.3-V tolerant).
Input
18
GPIO3/ sensor 4
GPIO, 8-mA drive, 3.3-V tolerant/ADC input (3.3-V tolerant).
Defaults to GPIO3.
I/O
19
GPIO2/ sensor 3
GPIO, 8-mA drive, 3.3-V tolerant/ADC input (3.3-V tolerant).
Defaults to sensor 3.
I/O
20
Sensor 2
Sensor interface, analog input to module, 3.3-V tolerant.
Input
Note:
1. For information on alternate I/O functions, refer to the WiFly advanced user manual.
305 mil
1 mil = 0.0254 mm
10 684297531
11 1513 17 1912 14 16 18 20
286 mil
2 mm
960 mil
47 mil
200 mil
1,150 mil
RN-171-XV