*********************************************** *Uebersicht der Steuersignale wichtiger EPROMS* *********************************************** PIN 2532 2564 2732 2764 27128 RD|PGM RD|PGM RD|PGM RD|PGM RD|PGM ---------------------------------------------- 2 N.C. /CS1 N.C. A12 A12 * | * "0"|"0" * | * # | # # | # ---------------------------------------------- 20 A11 A11 /CE|/PGM /CE /CE # | # # | # "0"||_| "0"|"0" "0"|"0" ---------------------------------------------- 22 PD|/PGM PD|/PGM/OE|UPR /OE /OE "0"||_| "0"||_| "0"|+25 "0"|"1" "0"|"1" ---------------------------------------------- 23 UPR A12 A11 A11 A11 "1"|+25 # | # # | # # | # # | # ---------------------------------------------- 26 UCC UCC* UCC N.C. A13 +5|+5 +5|+5 +5|+5 * | * # | # ---------------------------------------------- 27 N.C. /CS2 N.C. /PGM /PGM * | * "0"|"0" * | * "1"||_| "1"||_| ---------------------------------------------- UPR 25V 25V 25V 21V 21V (A) 21V 12,5V 12,5V ----------------------------------------------