Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Digital clock using 74193

Status
Not open for further replies.

LCD

New Member
Hi there, i'm having some problems to build my clock with this gates since i haven't got a construction diagram.

I've made so far, separate counts of

5 9 5 9

Two that counts from 0 to 9 and to from 0 to 5.

I used D+C outputs into the clear to get mod-10.
I used 3 bits only and B+C outputs into the clear to get mod-6.

The problem is that i cant make it count from 0 to 59.
I've tested this that seems to work theorically but in practice doesn't:

NOT(A+D)+(B+C) = Not(X)

this makes 1001 to get 1111. I got a 1 in the 9 count, i wired this output to the next clock input but it doesn't work.

Does anyone has a circuit of a clock using 74193, or an idea of why isn't working?
Thkz.
 
Hi LCD,

You have to treat them as individual counters and use
the reset signal as a clock signal for the next counter.

on1aag.
 

Attachments

  • 74193 clock.GIF
    74193 clock.GIF
    7.8 KB · Views: 3,545
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top