Digital Electronics - Digital Concepts - Discussion

Discussion Forum : Digital Concepts - General Questions (Q.No. 5)
5.
The range of voltages between VL(max) and VH(min) are ________.
unknown
unnecessary
unacceptable
between 2 V and 5 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
38 comments Page 3 of 4.

Murugan said:   1 decade ago
@Kishore is right answer, in digital electronics logic 0 and logic 1 are the two states, there is none others. Some students said 1.5 is treated as 0 and 3.5 is treated as 1, but even though the voltage is 3.5, then why you are taken it as 1 or 5v because it is unacceptable in digital electronics.

Unknown said:   1 decade ago
Which voltage they are talking about?

Gaurav said:   1 decade ago
Digital devices works on 0 and 1 only. i.e. for 0, the voltage range is VLmin-VLmax and for 1, its VHmin-VHmax. So, the gap between VLmax and VHmin means nothing to a digital system because its neither 0 nor 1. Its just a transition state.

That's why, this region is unacceptable for digital devices.

This question is from digital point of view, not from analog.

Kaushal kishor rai said:   1 decade ago
Voltage between vl and vh is not acceptable because the IC property is vary from one manufacturer to other.

Poonam said:   1 decade ago
Am also agree with niranjan because in digital voltage in b/w 1. 5v to 3. 5v is unvaluable thats why it is unacceptable.

S.prem kumar said:   1 decade ago
As karthik said, vl and vh values vary from manufacturer to manufacturer. Because, one manufacturer may design for one volategs but on that same voltages, no other manufacturer component doesn't work. So, it is unacceptable.

Sss said:   1 decade ago
I think it is not unexpectable. We need to know every component voltage range.

Niranjan said:   1 decade ago
But in digital systems 0 to 1.5V is treated as logic 0 & 3.5V to 5V treated as logic 1.

So that why it is unacceptable.

Kishore said:   1 decade ago
The range of voltages between VL(max) and VH(min) are unacceptable because in digital system VL(max) is taken as 1 and VH(min) is taken as 0. Other valtages in between are not accepted in the digital system.

Kalpana said:   1 decade ago
Thank you karthik.


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