Is there a 100% pin and software compatible one time programmable pic to the 16F84A ???
Is there a 100% pin and software compatible one time programmable pic to the 16F84A ???
i'm sure something exist but... Why?
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
I dont want to spend too much cash on erasable PICs cause once i give away the projects the IC will never be erased again...
Flash chips arent expensive compared to the UV erasable ones and the modern flash chips have so many features.Originally Posted by shahidali55
If you use an OTP chip then if you have a bug in your code that surfaces later then you have to buy a new chip which will cost more than using a flash device in the first place.
Keith
www.diyha.co.uk
www.kat5.tv
We could just talk about the 16CR84 ... but programming must be done ... at factory ( ROM memory ), and min. quantities compulsory.Originally Posted by shahidali55
Now, I do not see your reason, but using the "code protect" option can avoid some ... forbidden use ( reading ) of the chip.
the re-use of the chip finally leads to program a brand new chip ...
Speaking costs OTP products are as expensive as Flash ones ... the cost difference is for Windowed devices ( UV Erasable )
Alain
PS: Even OTP device programs can be modified ( "1"s can be overwritten by "0"s ) ... do not repeat it !!!
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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I think the best solution is to shift to the 16F84A.
Last edited by shahidali55; - 6th November 2006 at 18:22.
Hi,Shahid
The 16F84 is quite an obsolete chip nowadays ... some pin and functions-compatible devices are MUCH costless ...
see µChip Direct for 16F628A i.e.
Another trick would be to buy stocks of "Leaded" devices ... but for the market ??? what really ???
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
************************************************** ***********************
IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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