22 Sep
2023
22 Sep
'23
7:07 p.m.
On 9/22/23 11:34, emanuel stiebler via cctalk wrote:
There are still some 84pin chips out there(Altera
& Xilinx). Sometimes
they are pulls, or some 5V tolerant xilinx xc95xxxxl
I still have a few 84 pin PLCC XC95108 5V CPLDs Originally, I did a
tape controller design with one before Xilinx discontinued them. I
figured that using a discontinued part was not the way forward, so I
dropped the project. Xilinx did/does have its ISE design suite, which
is fairly easy to use.
Eventually, it turned out that using a reasonably fast MCU with 5V
tolerant I/O worked just as well and avoided the "mystery in a chip" of
a CPLD.
--Chuck