Re: CPLDs/FPGAs toolchain

From: Jim Brain <brain_at_jbrain.com>
Date: Sat, 23 Apr 2016 16:00:12 -0500
Message-ID: <571BE25C.1080502@jbrain.com>
On 4/23/2016 3:13 PM, silverdr@wfmh.org.pl wrote:
>
>> is this because of the
>> 5volt and other voltages and other things?
> No. CPLDs with 5V logic are practically no longer produced. There are with 3.3V and 2.5V. And CPLD is nowhere close to synonym of 5V logic. It's just a kind of programmable logic circuit enclosed in an IC.
Well, I think Terry was asking why we are all talking about CPLDs 
instead of FPGAs.  And, in that context, the voltage is important. FPGAs 
would most likely need additional buffers to handle 5V interfacing, but 
there are 5V and 5V tolerant CPLDs.

Jim



-- 
Jim Brain
brain@jbrain.com
www.jbrain.com


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