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PAL Chips, ATF22V10-15PC , GAL22V10


I am playing with an embedded system education board "EZ_MICRO 8051/552 TUTOR", on which I found a chip   "ATF22V10-15PC".   However on the totorial/lab manual, it says the board has an  "GAL22V10"  chip to implement the control logic needed to activate the input and all output.   I am confused.  

Are GAL22V10  and  ATF22V10-15PC  essentially the same, similar, or totally different chips?  Or  am I having a updated or outdated version of the manual or the board?  Thanks.

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compfixer101
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good, thanks!