GAL and PAL chips used for and how to test them

[johnburford]

What are GAL and PAL chips used for and how can you test these types of chips

GAL CHIPS:
GAL22V10B
GAL16V8B
GAL16V8B-7LP
GAL16V8A-10LP


PAL CHIPS:
PAL16L2CN
PALC16L8-25PC = TI
AMPAL16L8APC = AMD
PAL16L8B-4CN = MMI
PAL16R4MJ/883B
PAL16L8CN
PALCE22V10Q-25PC
TIBPAL16R4-25CN
AMPAL22V10APC
PAL16R6BCN
PAL20R8ACNS
AMPAL23S8-20PC
AMPAL16R6BPC
PAL20L8-7JC
AMPAL16R4PC
PAL16R8L-25PC
PAL20R8BCNS
AMPAL16L8APC
PAL16L8ANC
PAL20RA10MJS/883B
AMPAL16L8APC
PALCE20W8H-10PC/4
AMPAL18P8BPC
PALC16L8-25PC

 

[wade_hassler]

Google it, koolguy

 

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johnbuford,

What is with all the questions on antiquated, obsolete, expensive, slow, and hard to buy technology from the late 80's and early 90's? e.g.: EEPROMS, EPROMS, analog scopes from the 80's, old async SRAMs, and now PLDs.

Do you spend your days looking around on electronics history sites to come up with these questions?

Gal/Pal etc are all discontinued products of their respective manufacturers. Buying a Gal now involves going on Ebay/etc and hoping you don't get a tube full of ESD damaged, heavily used (reprogrammed), or reclaimed parts.

Basically the answers to your questions are:
"What are GAL and PAL chips used for"
Absolutely noting now days as there are cheaper, faster, and easy to buy alternatives.

and how can you test these types of chips
You don't...see the answer to the first question.