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60 second timer issue

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JarJariggs

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Hi, I am trying to create a 60 second timer which counts to 60 and then resets to 00 and continues to count up. The design must be done with a 74LS163 for the ones digit and an asynchronous counter designed with J/K flip-flops for the tens digit. Both are connected to 74LS48 BCD to Seven Segment decoders.

Currently, I am capturing the 6 from the tens counter and the 1 from the ones counter and wiring this to both the clears of the J/K flip-flops and the clear of the 74LS163. This causes it to reset from 60 to 01. If I instead only capture the 6 from the tens counter, it will reset at 59 to 00.

How can I reset at 60 without displaying a 01 immediately after it resets?
 
Welcome to ETO!
The design must be done with a 74LS163 for the ones digit
Why? Is this a Homework task? If so, your post is in the wrong forum.
 
Hello Jarjariggs

How are You setup the 74LS163 to count from 0 to 9 ?. . . Remember this counter IC is Binary, so it count from 0 through F. and the 74LS48 could not decode from A through F.

What IC identification number are you using for the tens?

The technique I use is as follow:
00 01 02 03 04 05 06 07 08 09 ---> Reset To 0 The 74LS163 & Count +1 Tens.
10 11 12 . . . . . . . . . 58 59 60 ---> Reset To 0 The F-F J-K.

I Hope Have helped to You.
 
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