University of Southern Mindanao
College of Engineering and Information Technology
Department of Computer Engineering
CpE 227 – Computer Engineering Drafting and Design
2nd Semester S.Y. 2020-2021
Laboratory Activity # 8
DECADE COUNTER
NAMES: _Arlyn C. Billarmino_
Objective:
This laboratory activity is designed to enable you to practice creating a circuit of a decade
counter using Proteus.
Procedure:
1.
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9.
Open Proteus 8 Professional.
Click New Project.
Enter LabAct8.pdsprj as the name of the project.
Click the Browse button and save the project in D:\CpE227Lab_Activities folder. Click Next.
Choose Create a schematic for the selected template, choose DEFAULT and click Next.
Choose Do not create a PCB layout. Click Next.
Choose No Firmware Project. Click Next.
Click Finish.
Create the given schematic diagram in proteus.
Materials Needed:
o
o
555 - Timer
10k resistor
o 0.01 F capacitor
o LED-RED
o
o
o
110 resistor
o 74LS192 – BCD Decade Up/Down Counter
100k variable resistor
o 74LS47 – BCD to 7-segment decoder/driver
o 7SEG-COM-ANODE – 7-segment common anode
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10. Click the play button to run the simulation.
11. Discuss in 2 to 3 sentences what you have observed.
In my observation the 555 timers may have been used to generate clock pulses for the counter,
and that the BCD up/down counter and BCD to 7-segment decoder/driver were used to display the
count on a 7-segment display. Using the variable resistor, the LED’s brightness may have been
changed.
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