Friday, 28 March 2014

PIC16F84A 1 Board Micro Computer CPU Board Draft

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PIC16F84A 1 Board Micro Computer CPU Board Draft

 

[caption id="attachment_87" align="alignnone" width="300"]DSCF1373 (8-bit PIC16F84A 1 Board Micro Computer CPU Board image illustration (Illustration AFP - Toshiki Shirose))[/caption]

 

CPU : PIC16F84A, 18 pin

 

Crystal : 20 MHz, 4 pin

 

Switch : with LED (3 Volts light up type), 2 pin

 

Battery : 1.5 Volts x 2, AA or AAA (It is selected by you)

 

Battery holder : 2 pin

 

Direct Bus Interface Socket : Pitch 2.54 mm, 28 pin (14 pin x 2) x 1, (Notched type)

 

2.54 mm x 40 pin = 101.6 mm, nearly equal 10 cm, then,

 

Assembly board : 10 cm x 15 cm

 

CPU socket : 18 pin x 1, 4 pin x 1 (For wire wrapping type socket, long leg type socket)

 

Assembly board legs (Spacer) : 4 cm length x 4 (For CPU Board not to electric short on your desk)

 

Wire wrapping cable

 

Wire wrapping tool

 

Drivers

 

Wire wrapping cable stripper

 

 

This is 8-bit PIC16F84A 1 Board Micro Computer CPU Board.

 

The simplest way.

 

Operating voltage is 3 Volts.

 

CPU clock is 20 MHz (5 MIPS).

 

Switch is here, GND - Switch - 3 Volts.

 

Please don't mistake connection plus and minus from battery.

 

This CPU board can make no soldering.

 

Wire wrapping cable vinyl can strip by wire wrapping cable stripper, in normal way, we strip 2 cm cable vinyl.

 

Wire wrapping cable cutter is with wrapping cable stripper.

 

 

We selected PIC16F84A CPU for our conveniences.

 

 

There are many PIC16F84A circuits patterns and programmed source codes in Internet and hardware magazines.

 

 

First of all, with the easiest way, with the simplest way, we want to make hardware.

 

To make this 8-bit PIC16F84A 1 Board Micro Computer CPU Board is an easy, connect CPU and Bus Interface Socket (We wrote this draft before), connect CPU and Crystal, connect Battery to CPU and Crystal and Bus Interface Socket and Switch.

 

 

PIC Writer can make another assembly board and connect bus between this CPU board and PIC Writer circuit board.

 

 

Let's play with us with this CPU board.

 

 

We are in the first step of long long road of Computer Science.

 

 

(8-bit PIC16F84A 1 Board Micro Computer CPU Board written by Toshiki Shirose)

 

 

(Reference Microchip PIC16F84A Datasheet)

 

*This 8-bit PIC16F84A 1 Board Micro Computer CPU Board Patent Holders

Takako Shirose

Toshiki Shirose

(To The Kingdom of Ryukyu Government : Please send this Patent to Japanese Government)

 

(R.S.F. toshiki speed news press, Agence France-Presse, 29 Saturday March 2014 The Roman)

 

Error is in illustration.

 

PIC6F84A is 18 pin.

 

PIC, left side top to bottom is 1 - 9, right side bottom to top is 10 - 18.

 

(R.S.F. toshiki speed news press, Agence France-Presse, 29 Saturday March 2014 The Roman)