ZB21 Datasheet, PDF (3/5 Pages) List of Unclassifed Manufacturers – ZigBee OEM Module

Pin Assignment
Name Type Pin#
Description
VIN
24
GND
11, 23
UART Interface
RXD
I
8
TXD
O
6
CTS
I
9
RTS
O
10
Special Function for Flash ROM
VIN
GND
Receive data
Transmit data
Clear to send (active low)
Request to send (active low)
SYSCLK
I
15
Input System Clock (4-33MHz)
MODE2
I
16
System Clock Source:
Internal (H),External (L)
BOOT0
I
20
Input (active low)
MODE3
I
22
(Default: Pull Down)
RESET
I
3
Reset input (active low for 5 ms);
GPIO – General Purpose Input/Output
GPIO [0]
I/O
1
General Purpose Input/Output
GPIO [1]
I/O
2
General Purpose Input/Output
GPIO [2]
I/O
4
General Purpose Input/Output
GPIO [3]
I/O
5
General Purpose Input/Output
GPIO [4]
I/O
7
General Purpose Input/Output
GPIO [5]
I/O
12
General Purpose Input/Output
GPIO [6]
I/O
13
General Purpose Input/Output
GPIO [7]
I/O
14
General Purpose Input/Output
GPIO [8]
I/O
17
General Purpose Input/Output
GPIO [9]
I/O
18
General Purpose Input/Output
GPIO [10]
I/O
19
General Purpose Input/Output
GPIO [11]
I/O
21
General Purpose Input/Output
Alt Function
External Clock Input
(optional)
Boot ROM, high
Application ROM, low
Reserved for testing
SPI; MOSI
SPI; SCLK
SPI; SSN
A/D, AIN2
A/D, AIN0
20mA current sink
20mA current sink
20mA current sink
A/D, AIN3
A/D, AIN1
SPI; MISO
©2008 Amp’ed RF Inc
1722 Ringwood Ave, Suite 250, San Jose, CA 95131, USA
www.ampedrf.com
Amp’ed RF, Inc.
(phone) 408 213-9530
(fax) 408 213-9533
KC21 Datasheet 03/3/2008
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