10-08-2010 06:56 AM
i nedd some Prom XC1701 or other dimension for using with XC2018.Is ir possible to use some more newer and not hard to find Prom?Possible in nNOT PLCC case but soic or DIL?
10-08-2010 01:55 PM
What's your power supply voltage? If you're running these dinosaurs on +5V
you may not find too many "more recent" parts. Most of the newer parts top
out at 3.3V
For 3.3V, you might find something close from Atmel if they still make the 17LVxx series. Otherwise
if you don't need pin compatible your best bet is to use a XCF0xS "PlatformFlash" which is re-programmable
and much cheaper than the old 17xx parts.
10-09-2010 02:33 AM
the problem is the supply: 5 volt.
The pin to pin compatibility isn't a problem.
Atmel make something at 5 volt?
10-10-2010 06:20 PM
It's not easy to find on the Atmel site. Go to digikey.com and search
for "AT17LV". Then click on Memory - FPGA Configuration. Then you can
select just parts that can run on 5V. There are a number of AT17LVxx parts
still available, including some in PLCC packages. They are not cheap,
though so I wouldn't recommend it for a new design. However I suspect
that using an ancient part like the XC2000 series would not be for a new
design. They should be pin compatible with the original XC17xx parts
in the same package.
02-21-2011 03:02 AM - edited 02-21-2011 03:05 AM
I'm a Portuguese person,...
MAybe U can use the XC1736EPDG8C (5Volt) prom, it's not hard to find, and u can be buy it on RS components:
This RS vendor also has the XC1701PD8C 1Mx1b configuration prom
12-16-2011 09:10 AM
The XC2000 series was discontinued in 1996. It was an early SRAM-based FPGA, so I would
say it's "infinitely reprogrammable."
However were you really asking if the XC17xx PROMs are re-programmable? Those devices are
made with a UV-erasable EPROM process, so without a quartz window on the package they are one-time