Electronics - Programmable Logic Devices (PLD) - Discussion

3. 

Once a PAL has been programmed:

[A]. it cannot be reprogrammed.
[B]. its outputs are only active HIGHs
[C]. its outputs are only active LOWs
[D]. its logic capacity is lost

Answer: Option A

Explanation:

No answer description available for this question.

Sangeeta Kammar said: (Jul 24, 2013)  
Long form of PAL?

Atul Thakur said: (Aug 1, 2013)  
Actually pal can be reprogrammed it itself stands for prgrameed array logic in which and is programmable and or logic is fixed.

C.P. Singh said: (Nov 4, 2013)  
Of course it can be reprogrammed but logic is fixed, as only and is programmable.

Chaitu said: (Mar 14, 2016)  
The OR plane of PAL (Programmable array logic) is fixed (not programmable) where AND plane is programmable in PAL. If both are programmable then only it can be re-programmable but here OR plane is fixed. So, PAL cannot be re-programmable.

PLA (Programmable logic array) can be re-programmable.

Sibhi said: (Aug 7, 2016)  
How its considered as OR plane?

Kit said: (May 16, 2018)  
All inputs are the first fuse linked to 'and' gates.

All outputs from 'and' gates are fuse linked to 'or' gates as inputs.

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