simulation of same circuit design in different multisim versions give different results

[ruhl]

multisim version 10.0 , PATTERN16T GIVES RESULTS ON... DISPLAYSA2A20000A2A20000AAAA0000AAAA0000.....

MULTISIM VERISION 10.1, PATTERN16T GIVES RESULTS ON

DISPLAYS A3A30000A3A30000A3A30000.......

EACH MULTISIM PROGRAM USE THE SAME CIRCUIT FOR ANALASIS.

MULTISIM 10.0 VERSION GIVES THE CORRECT RESULT.

YOU MAY HAVE TO CHECK THE NEW VERSION FOR THIS PROBLEM

WITH MULTISIM 10.0 VERSION.

RICHARD RUHL

[Fernando_D · Accepted solution]

Hello,

Could you please attach your circuit(s) for further troubleshooting? What's your operating system?

Regards,

[ruhl]

operating system is winows xp.  Iam sending you this file pattern16t.

[ruhl]

my operating system is windows xp. sending you pattern16t. might have to send you the file over my email. said loaded with errors.

[Fernando_D]

Hello,

Just zip the file and attach it here. Just to confirm, you are using Multisim 10.0 and 10.1?

Regards,

[ruhl]

yes I am using multisim 10.0 and mulisim 10.1

[ruhl]

sending you a change in pattern16t schematic.  A2 comes up everytime in multisim 10.0 but in Multisim 10.1 the disply stays zero with same schematic.

[ruhl]

the cap connected to the clk is now 150p in value.

[ruhl]

clk cap s now 1000pF and xral is now 5MHZ. any results.

[ruhl]

problem solved-made new ckt. model of 74LS244N.  Both versions work with same ckt.

Fan in and Fan out doesn't show indication when to many gate inputs are tied to one output.

gate output max current 16ma.

gate inpts draws max current 1.6ma

number of inputs should add up to about half of gare output max current 16ma

attaching final pattern16T schematic with all the corrections.