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Microcontroller

PIC16F628

    PIC16F628 8-bit CMOS FLASH-based microcontroller Low Voltage Programmer Schematic

7404

Resistor

 

Parts

Name Voltage (V) Current (A) Quantity Comment
7404     1 Hex Inverter. DM7404N.
LED 0.7V voltage drop   1 Light Emitting Diode
PIC 16F628A     1 8-bit CMOS FLASH-based Microcontroller.

Datasheets

74LS04
LM78xx 3-Terminal Positive Regulators
Hi-Tech PICC Lite PIC Chip Programmer Software Manual
PIC16F628 8-bit CMOS FLASH-based microcontroller
PIC16F628 Errata
 

FAQ

1. What is happening with pin 14? Is VDD connected to ground?
That's just power. Vdd of Vdd and Gnd.

2. What is the purpose of the capacitor between Com and Out of the Positive Regulator LM7805?
(do you really need it? not sure)

3. Can I power the circuit with a 9V Battery?
Yes.

Work Cited

MIT Microcontroller Class
Microcontroller Overview

Links

1. MIT Fall 2005 Audio LED Final Project Demo
    MIT Fall 2005 Audio LED Final Project Report
2. MIT LEGO Car Final Project
3. MIT Big Final Project Pictures 1 2 3 4 5 6 7