Re: CPLDs/FPGAs toolchain

On 4/25/2016 7:41 AM, Hegedűs István wrote:
> XC9500XL devices are 5V tolerant and pins can be configured for LVTTL. 
> As output the LVTTL levels are enough to drive 5V logic TTL devices 
> while the input of the CPLD is 5v tolerant. It can be used for the old 
> 8 bit projects just make sure the CPLD gets proper Vcc (3.3v).
> Istvan
I regularly use XL devices (144 and 72 macrocell devices, but my point 
was that the non XL products are no longer produced.  As others have 
noted, sources like utsource and a few others allow me to procure those 
5V products, but they are climbing in price and there is a dwindling supply.

Jim

> *From:* Jim Brain <mailto:brain@jbrain.com>
> *Sent:* Friday, April 22, 2016 11:07 PM
> *To:* Michał Pleban <mailto:lists@michau.name> ; 
> cbm-hackers@musoftware.de <mailto:cbm-hackers@musoftware.de>
> *Subject:* Re: CPLDs/FPGAs toolchain
>
> Well, I know Xilinx has 5V tolerant parts still in production, but I 
> don't think either offer 5V logic anymore.
>
> jim
>
>> On April 22, 2016 at 4:22 PM Michał Pleban <lists@michau.name> wrote:
>>
>>
>> Hello!
>>
>> silverdr@wfmh.org.pl wrote:
>>
>>> What do you guys use for developing your CPLDs and FPGAs? Do you use 
>>> the supplier provided tools or some free / GNU positions worth 
>>> having a closer look at?
>>>
>> I am working with Atmel CPLDs so I use their WinCUPL software which is
>> free. However, I am getting more and more tired of the bugs in it so I
>> am contemplating switching to Xilinx or Altera if they still have 5V
>> parts available.
>>
>> Regards,
>> Michau.
>>
>>
>>
>> Message was sent through the cbm-hackers mailing list
>>
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-- 
Jim Brain
brain@jbrain.com
www.jbrain.com



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