SN74121DE4 SN74LV123ANSR LTC6993HDCB-1#TRPBF CD74HCT4538M96 LTC6993HDCB-2#TRPBF SN74LS123NSR LTC6993HDCB-3#TRPBF 74HCT4538PW,118 LTC6993HDCB-4#TRPBF CD4047BMT LTC6993HS6-1#TRPBF CD74HC423MT LTC6993HS6-2#TRPBF CD14538BPW LTC6993HS6-3#TRPBF CD74HC4538PW LTC6993HS6-4#TRPBF SN74LV123APW LTC6993HDCB-4#TRMPBF LTC6993CDCB-1#TRMPBF