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MCP2120/MCP2150
DEVELOPER ’S KIT USER ’S GUIDE
Appendix A. Hardware Detail
A.1
A.2
A.3
A.4
INTRODUCTION
The MCP2120/MCP2150 Developer ’s Board hardware is intended to illustrate the ease
of use of Microchip’s infrared data communication solutions. The Developer ’s Board
features the following hardware elements.
POWER SUPPLY
There are three ways to supply power to the MCP2120/MCP2150 Developer ’s Board:
? A 9V battery can be plugged into BT1.
? A 9V, 750 mA unregulated AC or DC supply can be plugged into J5.
? A +5V, 750 mA regulated DC supply can be connected to the two pins provided,
labled +5V and GND. A pair of 18 ″ (45 cm) cables are provided to allow one board
to power another.
POWER INDICATOR
One green LED indicates whether there is power applied to the MCP2120 and
MCP2150 Developer Boards (LED lit) or not (LED off).
RS-232 SERIAL PORT
A.4.1
MCP2120 Developer ’s Board
A MAX232 compatible level shifting IC has been provided with all necessary hardware
to support connection of an RS-232 host through the DB-9 connector. The port can be
connected to a PC using a straight through cable. Refer to the MCP2120 Data Sheet
(DS21618) for more information.
A.4.2
MCP2150 Developer ’s Board
A MAX3238E compatible level shifting IC has been provided with all necessary
hardware to support connection of a RS-232 host through the DB-9 connector. The port
can be connected to a PC using a straight through cable. Refer to the MCP2120 Data
Sheet for more information.
? 2005 Microchip Technology Inc.
DS51246C-page 41
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