贴片直插SN74LS174MR1，SN74LS166ML1，SN74LS174DR2，4

贴片直插SN74LS174ML2G，SN74LS174DR2G，SN74LS174ML1G，4

议价原R6764-61 FDC37N869 SED1330FBA SN74LS174DR2