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Reliable sources for GALs (Lattice 22V10)
Posted: Sun Sep 02, 2018 8:04 pm
by linker3000
I've just checked 10 from an eBay supplier I've used for SRAM in the past with no problems - and only 1 out of 10 programmed & verified and is now in use.
How's UTSource for GALs - any recent experiences?
Any other reliable, named sources (I'm in the UK).
Thanks.
Edit: Supplier was chips-fans. 8 X GALs failed to verify both the intended code and a full burn of zeroes. 1 X was reported as a chip failure/overcurrent. I had to haggle for a refund and finally accepted 65% of price paid
Re: Reliable sources for GALs (Lattice 22V10)
Posted: Sun Sep 02, 2018 10:34 pm
by Alarm Siren
Not a true Lattice 22V10, but I believe the following chip are equivalent (and backward compatible with):
https://www.mouser.co.uk/ProductDetail/ ... OwG5mfNGW1
Re: Reliable sources for GALs (Lattice 22V10)
Posted: Sun Sep 02, 2018 10:39 pm
by linker3000
Regrettably the programming algorithm is very different and the TL866 doesn't support them, so I need Lattice ones.
Re: Reliable sources for GALs (Lattice 22V10)
Posted: Sun Sep 02, 2018 11:00 pm
by Alarm Siren
Ah, alas.
Re: Reliable sources for GALs (Lattice 22V10)
Posted: Mon Sep 03, 2018 4:57 am
by BigDumbDinosaur
I've just tried out 10 I got from a supplier off eBay I've used for SRAM (tested and working fine) in the past - and only 1 out of 10 programmed and verified and is now in use.
How's UTSource for GALs - any recent experiences?
Any other reliable, named sources (I'm in the UK).
Thanks.
Lattice discontinued their entire GAL product line in 2010, so it's going to be tough to find them anywhere. I have one piece of a 22V10 on order from Jameco (USA) to see which manufacturer's product I get. Jameco is still listing the Lattice product as available.
Re: Reliable sources for GALs (Lattice 22V10)
Posted: Mon Sep 03, 2018 4:58 am
by BigDumbDinosaur
That's a Microchip (formerly Atmel) product, which cannot be programmed by most programmers.