User's Guide

Table Of Contents
Hardware Pin signals
XBee/XBee-PRO S2C 802.15.4 RF Module User Guide
21
Pin Name Direction Description
2 DOUT Output
UART data out
3 DIN/CONFIG Input
UART data In
4 SPI_MISO Output
Serial Peripheral Interface (SPI) Data Out
5 RESET Input
Module reset (reset pulse must be at least 200 ns). This must
be driven as an open drain/collector. The device drives this
line low when a reset occurs. Never drive this line high.
6 PWM0/RSSI
PWM
Output
PWM output 0 / RX signal strength indicator
7 PWM1 Output
PWM output 1
8 [Reserved] -
Do not connect
9 DI8/SLEEP_
RQ/DTR
Input
Pin sleep control line or digital input 8
10 GND -
Ground
11 DIO4/SPI_MOSI Both
Digital I/O 4 / SPI Data In
12 DIO7/CTS Both
Digital I/O 7 / Clear-to-send flow control
13 ON/SLEEP Output
Device sleep status indicator
14 V
REF
-
Feature not supported on this device. Used on other XBee
devices for analog voltage reference.
15 DIO5/ASSOC Both
Digital I/O 5 / Associated indicator
16 DIO6/RTS Both
Digital I/O 6 / Request-to-send flow control
17 DIO3/AD3/SPI_
SSEL
Both
Digital I/O 3 / Analog input 3 / SPI select
18 DIO2/AD2/SPI_
CLK
Both
Digital I/O 2 / Analog input 2 / SPI clock
19 DIO1/AD1/SPI_
ATTN
Both
Digital I/O 1 / Analog input 1 / SPIAttention
20 DIO0/AD0 Both
Digital I/O 0 / Analog input 0
The following table shows the pin assignments for the surface-mount device.
Pin Name Direction Function
1 GND -
Ground
2 VCC -
Power supply
3 DOUT Output
UART data out