JE Project - Binary to 7 Segment Decoder

Binary to 7 Segment Decoder

http://www.jakeselectronics.net/

There are many Binary to 7 Segment decoders out there, such as the CD4511, DM74LS47, SN7447 and the DM9368, none of which have as many features as my version.
Many only display 0 - 9 with few displaying all Hexadecimal digits.
I am using a PIC16F628A and the features are listed below.
- 4 bit binary input
- Ripple Blanking Input & Output
- Latch enable
- Test Lamp Enable
- Display Type Selection (Common Cathode or Common Anode display)

Category:

Science & Technology

Tags:

• Jakes
• Electronics
• Microchip
• Project
• Microcontroller
• Binary
• to
• Segment
• Decoder

[jakeontheweb]

I dont, but you could use a chip from the 4000 series.

Eg, CD4518B Dual BCD Up-Counter, 4bit output.

Then plug it into a decoder like mine in the video. x2

With the CD4518B, with every pulse, it will increment, and cos it's BCD, it returns to 0 after 9.

The CD4518B is a Dual counter, so you can use 1 for the 1's column and 1 for the 10's column.

On the outputs of the 1's column, you put 4 inverters, going to a 4 input AND gate, and that will trigger the tens column when the 1's = 0.

[muymoyutot]

man do you have a circuit diagram, that will display a output of 00-99 using a 2, 7 segment display? binary inputs will be converted directly

[jakeontheweb]

I ran out of words in the last comment.

I will explain the use of the gates a little better.

The reason I recomended using the gates on the ouputs of the 1's counter, is to increment the 10's column every time the 1's colum hits '0'.

And you can use a Quad input NAND, (Part number CD4012), instead of what I first recomended.

This way when the 1's ouputs are 0000, the 10's column will be incremented once.

Note that I haven't tried this and it is all ideas. You will have to try it out.

[CronosXIIII]

You should probably try something larger than a single digit. Hoot up say about 10 7-segment digits and try converting 16 bits or something. Unless you want to create a circuit by using the double dapple method, you may have to buy the unit that does it for you.

[MrGarrettStudios]

Lol I did this in minecraft but without a-f and it goes to 20 :p

[irfaanfr1]

very interesting!

[coolestdude80]

I made some binary decoders to run a remote control robot out of common switching transistors.