TTL and CMOS - Vout

Thread Starter

Jaroslaw

Joined May 28, 2019
4
Hi all,

Could anyone help me with this? "investigate the input and output values and thresholds for CMOS and TTL logic devices use appropriate lab equipment and Proteus simulations to perform tests using the CMOS HCF4069 and TTL74ls04 IC’s

Gradually increase the input voltage from 0v to 5v and note readings at 100mV intervals on the output."

I have it build in Proteus, however it is not working correctly :(. Can anyone advise how to make it working?

Picture attached

Thanks
 

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WBahn

Joined Mar 31, 2012
32,847
Hi all,

Could anyone help me with this? "investigate the input and output values and thresholds for CMOS and TTL logic devices use appropriate lab equipment and Proteus simulations to perform tests using the CMOS HCF4069 and TTL74ls04 IC’s

Gradually increase the input voltage from 0v to 5v and note readings at 100mV intervals on the output."

I have it build in Proteus, however it is not working correctly :(. Can anyone advise how to make it working?

Picture attached

Thanks
What, specifically, is it doing or not doing that is incorrect? We are not mind readers.

Are those four devices hanging off the wires signal sources or meters? If meters, then what is driving the inputs? If sources, then why are you driving the outputs?
 

Thread Starter

Jaroslaw

Joined May 28, 2019
4
What, specifically, is it doing or not doing that is incorrect? We are not mind readers.

Are those four devices hanging off the wires signal sources or meters? If meters, then what is driving the inputs? If sources, then why are you driving the outputs?

Hi, output voltages are not correct, due to the data sheets. On the left side there are power sources (2), on the line with the meters are voltage probes.
 

WBahn

Joined Mar 31, 2012
32,847
Hi, output voltages are not correct, due to the data sheets. On the left side there are power sources (2), on the line with the meters are voltage probes.
Come on! If you want strangers on the Internet to help you for free, you need to supply details. Otherwise they will simply move on to help someone that will. It's in YOUR interest to help us help you.

WHAT are the voltages that you are seeing? WHAT are the voltages that you are expecting based on the datasheets?

In the following image, are you saying that A is a power source while B is a meter? If so, how is the person looking at this supposed to tell the difference?

What is B? Is it a waveform generator? Or is it an oscilloscope?

Could you PLEASE post a screenshot of the simulation waveforms!

TTLCMOS.png
 
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