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WSN802G I/O Pad Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Name
GND
DIAG_TX
DIAG_RX
DIN0
RADIO_TXD
RADIO_RXD
RSVD
RSVD
PWM0
DOUT0
DIN1
DOUT1
RSVD
VCC
GND
GND
/RESET
ADC0
ADC1
RSVD
RSVD
RSVD
RSVD
3.3V_OUT
ADC_REF
WAKE_IN
WAKE_OUT
GND
RSVD
GND
I/O
-
O
I
I
O
I
-
-
O
O
I
O
-
I
-
-
I
I
I
-
-
-
-
O
O
I
O
-
-
-
Description
Power supply and signal ground. Connect to the host circuit board ground.
Diagnostic serial port output.
Diagnostic serial port input.
Digital input port 0.
Serial data output from the radio.
Serial data input to the radio.
Reserved pin. Leave unconnected.
Reserved pin. Leave unconnected.
16-bit pulse-width modulated output 0 with internal low-pass filter. Filter is first-order, with a 159 Hz 3 dB
bandwidth, 10K output resistance.
Digital output port 0.
Digital input port 1.
Digital output port 1.
Reserved pin. Leave unconnected.
Power supply input, +3.0 to +3.63 Vdc.
Power supply and signal ground. Connect to the host circuit board ground.
Power supply and signal ground. Connect to the host circuit board ground.
Active low module hardware reset.
10-bit ADC input 0. ADC full scale reading can be referenced to the module’s +1.8 V regulated supply.
10-bit ADC input 1. ADC full scale reading can be referenced to the module’s +1.8 V regulated supply.
Reserved pin. Leave unconnected.
Reserved pin. Leave unconnected.
Reserved pin. Leave unconnected.
Reserved pin. Leave unconnected.
Module’s +3.3 V regulated supply, available to power external sensor circuits. Current drain on this output
should be no greater than 50 mA.
Module’s +1.8 V regulated supply, used for ratiometric ADC readings. Current drain on this output should be
no greater than 10 mA.
Active high interrupt input to wake the module from timer sleep. Can be used to wake module on event, etc.
Active high output asserted when module wakes from timer sleep. Can be used to wake an external device.
RF ground for the WSN802GC only. Connect to the host circuit board ground plane.
Reserved pin. Leave unconnected.
RF ground for the WSN802GC only. Connect to the host circuit board ground plane.
www.RFM.com E-mail: info@rfm.com
?2009 by RF Monolithics, Inc.
Page 4 of 7
WSN802G - 04/29/09
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