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T Y P ES S N 5 4 ALS 242 A, SN 5 4ALS243 A, SN 54AS242, SN54AS243
S N 74 A LS 2 4 2 A , S N 74 A LS 2 4 3 A , S N 74 A S 2 4 2 , SN 74AS243
Q U AD R U PLE BUS TRAN SC EIVERS W ITH 3 S TA TE O U TPU