PICDEM2 datasheet(50/60 Pages) MICROCHIP

50 / 60 page

 2001 Microchip Technology Inc.

DS30374D-page 45

PICDEM 2 USER’S GUIDE

Appendix A. Hardware Detail

The PICDEM 2 hardware is extremely simple and is intended to illustrate the

ease of use of various PICmicro MCUs. The PICDEM 2 features the following

hardware elements:

A.1

Processor Sockets

Although two sockets are provided, only one device may be used at a time.

• 40-pin socket

• 28-pin socket

A.2

Display

Eight red LEDs are connected to PORTB of each processor type. The

PORTB pins are set high to light the LEDs. These LEDs may be disconnected

from PORTB by removing jumper J6.

One green LED is provided to determine whether there is power to the

PICDEM 2 board (LED lit) or not (LED off).

A.3

Power Supply

There are three ways to supply power to PICDEM 2:

• A 9V battery can be plugged into J8.

• A 9V, 100mA unregulated AC or DC supply can be plugged into J2.

• A +5V, 100mA regulated DC supply can be connected to the hooks

provided.

In-circuit emulator users have a regulated +5V power supply available in the

logic probe connector and can easily connect to the hooks on PICDEM 2 (Red

probe to +5V and Black probe to GND).

Note 1: The exact power up sequence listed in Getting Started

(Chapter 2) of this guide must be followed.

2: The PICDEM 2 kit does not provide a power supply.

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