Download User`s Guide

8-Pin PIC Prototyping PC Board
User’s Guide
Overview
The Pololu 8-pin PIC prototyping PCB is designed for implementing custom designs based on Microchip’s line of 8-pin microcontrollers.
The PCB has the footprints and traces necessary for establishing basic support circuitry for running a PIC. A prototyping grid is available
for adding your own electronics.
Contacting Pololu
You can check the Pololu web site at http://www.pololu.com/ for the latest information about the 8-pin PIC prototyping PC board,
including color pictures, application examples, and troubleshooting tips.
We would be delighted to hear from you about your project and about your experience with our product. You can contact us through our
online feedback form or by email at [email protected]. Tell us what we did well, what we could improve, what you would like to see
in the future, or anything else you would like to say!
Populating the PCB
The PCB is designed for an LM2931Z or compatible
voltage regulator. Make sure the flat side of the
package matches the PCB drawing.
Make sure the notch indicating pin 1
of the PIC is on the top side of the
board. Use a socket so that you can
remove the PIC to reprogram it.
Connect your battery or other
power source to the Vin pins.
The 8-pin PICs have built-in
oscillators, so an external clock
source is optional. The PCB can
hold either a ceramic resonator
with built-in capacitors or a
crystal or resonator with external
capacitors.
Vin
A 100 uF electrolytic capacitor is
recommended for the regulator
to operate properly. Make sure
to observe the proper polarity.
5 4 3 2 1 0
Use a 0.1 uF ceramic capacitor to
keep your supply voltage clean.
These small caps are not polarized.
A DB9 footprint is provided. The large
holes on the sides can instead be
used for mounting holes.
9 8 5 4 3 2 1 7 6
1
9
6
PCB02A © 2003 Pololu
5
Schematic Diagram
Vin
PIC12XXXX
LM2931Z-5.0
VIN
1
VOUT
GND
C1
100u
C2
3
0.1u
2
8
Pololu
© 2003 Pololu Corporation
http://www.pololu.com/
5
4
VDD
GP0
CLKOUT/GP4
GP2
CLKIN/GP5
GP3/MCLR
VSS
3
GP1
2
1
0
7
6
5
4
PCB02A