Re: GAL vs CPLD

Hi,

I found them here:

http://www.segor.de/#Q=22V10D-15%2520LPN

http://www.segor.de/#Q=EPM%25207032%2520LC44-15



On 18/09/2012 09:02, Michał Pleban wrote:
> didier@aida.org wrote:
>
>> What is best GAL or CPLD ?
> That of course is a very general question ;-)
>
> * GAL is an old chip, comparable to the PLA of 8-bit Commodores plus
> flip-flops at the outputs. CPLD is bigger, has more IOs and more
> flexible architecture allowing for much more sophisicated design.
>
> * CPLD is harder to program and will need a special JTAG programmer, GAL
> should be programmable by a decent EPROM programmer as well (at least
> that's what my programmer advertises, never tried that) and building
> your own GAL programmer is easy.
>
> * It is hard to find 5V CPLDs now, the old Altera and Xilinx ones are
> rare and expensive. I personally am working with Atmel 15xx chips which
> are still available.
>
> * Basing on the complexity, I am surprised about the price difference
> you are quoting, it should be the other way around. I am sure you will
> be able to find much cheaper GALs/PALs, but you will not find cheaper CPLDs.
>
> Regards,
> Michau.
>
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