28230 Parallax Inc, 28230 Datasheet - Page 2

• Manufacturer Part Number: 28230
• Description: MCU, MPU & DSP Development Tools Propeller Dev Board (MSR1)
• Manufacturer: Parallax Inc

Specifications of 28230

• Processor To Be Evaluated: P8X32A-Q44
• Interface Type: USB
• Dimensions: 77.5 cm x 102.9 cm x 13.4 cm
• Maximum Operating Temperature: + 70 C
• Operating Supply Voltage: 6.5 to 15 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Propeller Robot Control Board
Control Board Details
The Propeller Robot Control Board provides all the necessary base circuits needed to build a very powerful
mid-size robotics platform. The control board has an on-board USB serial interface to facilitate programming
and communication with the Propeller chip. A dual switching supply provides 3.3 V and 5 V @ up to 3 A
each. The on-board dual full bridge driver makes it possible to directly drive DC brushed gear motors. The
24 available I/O pins are buffered through three 8-bit bidirectional voltage level translators providing direct 5
V interface capability. Finally, the input voltage can come from a battery pack or a wall adapter using a
standard 2.1 mm barrel plug. See below for details of the on-board hardware and connections.
Copyright © Parallax Inc.
1. Propeller P8X32A-Q44
2. 64 KB EEPROM
3. Socketed 5 MHz Crystal
4. Motor B (right) Socket
5. Motor A (left) Socket
6. L6205 H-Bridge Driver
5
17
4
6
12
13
15
Propeller Robot Control Board (#28230)
16
7. USB Connector/Circuit
8. Battery Pack Socket
9. Barrel Jack, 2.1 mm
10. Power Good/Fail LEDs
11. Dual Switching Power Supply
12. Reset Button
14
2
1
7
3
11
13. 3-Position Power Switch
14. Headers to I/O P0-P23
15. Voltage Translators for I/O
16. Direct I/O Access Vias
17. VIN, 5V, 3.3V Sockets
18. Ground/Mounting Vias
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