HD74LS197AP HD74LS2 HD74LS20 HD74LS20FP HD74LS20FP-TL HD74LS20G HD74LS20N HD74LS20P HD74LS20P-Q HD74LS20RP HD74LS20RPEL HD74LS21 HD74LS211P HD74LS21FP HD74LS21FP-TL HD74LS21FPEL HD74LS21FPTR HD74LS21N HD74LS21P HD74LS21P-E-Q HD74LS21PNBSP HD74LS221 HD74LS221FP HD74LS221FPEL HD74LS221FPTR HD74LS221N HD74LS221O HD74LS221P HD74LS221P-Q HD74LS221PNBSP HD74LS22FP HD74LS22HP HD74LS22P HD74LS233P HD74LS238FP HD74LS23P HD74LS24 HD74LS240 HD74LS2400 HD74LS240AP HD74LS240F HD74LS240FP HD74LS240FP-E HD74LS240FPEL HD74LS240FPTL HD74LS240G HD74LS240N HD74LS240P HD74LS240P-DIP HD74LS240P-E HD74LS240P-E-Q HD74LS240PNBSP HD74LS240RP HD74LS241 HD74LS241AP HD74LS241P HD74LS241P-Q HD74LS242 HD74LS2420 HD74LS242FPEL HD74LS242P HD74LS243P HD74LS244 HD74LS244/7.2 HD74LS244A HD74LS244APVEL HD74LS244D HD74LS244EP-EL HD74LS244F HD74LS244FP HD74LS244FP-E-Q HD74LS244FPEL HD74LS244FPEL(RENESAS) HD74LS244FPL HD74LS244FPTL HD74LS244G HD74LS244J HD74LS244N HD74LS244P HD74LS244P-6F26 HD74LS244P-E HD74LS244P-Q HD74LS244PC HD74LS244PREL HD74LS244REL HD74LS244RP HD74LS244RP-EL HD74LS244RPEL HD74LS244RPEL-Q HD74LS244RPELQ HD74LS244RR HD74LS245