Bs2-Ic Pinout - Parallax BASIC Stamp II Manual

Pin Name
1 TX
2 RX
3 ATN
4 GND
5 P0
6 P1
7 P2
8 P3
9 P4
10 P5
11 P6
12 P7
13 P8
14 P9
15 P10
16 P11
17 P12
18 P13
19 P14
20 P15
21 +5V **
22 RES
23 GND
24 PWR **
* For automatic serial port selection by the Stamp II software, there must also be a connection
from DSR (DB9 pin 6) to RTS (DB9 pin 7). This connection is made on the Stamp II carrier
board. If you are not using the carrier board, then you must make this connection yourself, or
use the command-line option to tell the software which serial port to use.
** During normal operation, the Stamp II takes about 7 mA. In various power-down modes, con-
sumption can be reduced to about 50 µA.
BASIC Stamp II Manual 0.94 • Parallax, Inc. • (916) 624-8333 • Page 7
BASIC Stamp II
Description
Serial output
Serial input
Active-high reset
Serial ground
I/O pin 0
I/O pin 1
I/O pin 2
I/O pin 3
I/O pin 4
I/O pin 5
I/O pin 6
I/O pin 7
I/O pin 8
I/O pin 9
I/O pin 10
I/O pin 11
I/O pin 12
I/O pin 13
I/O pin 14
I/O pin 15
+5V supply
Active-low reset
System ground
Regulator input
Comments
Connect to pin 2 of PC serial DB9 (RX) *
Connect to pin 3 of PC serial DB9 (TX) *
Connect to pin 4 of PC serial DB9 (DTR) *
Connect to pin 5 of PC serial DB9 (GND) *
Each pin can source 20 ma and sink 25 ma.
P0-P7 and P8-P15, as groups, can each
source a total of 40 ma and sink 50 ma.
5-volt input or regulated output.
Pull low to reset; goes low during reset.
Voltage regulator input; takes 5-15 volts.