关注微信公众号查券更方便
贴片直插SN74LS161AML1，SN74LS157ML2G，SN74LS161AMEL，4
贴片直插SN74LS157ML1G，SN74LS157DR2G，SN74LS157MELG，4
贴片直插SN74LS157MELG，SN74LS153ML2G，SN74LS156ML1G，4
