正品DM74F151ASJX DM74CS245WMX DM74AS881BNT DM74AS874WMX

贴插DM74F161ASJX-DM74ACT521SJ-DM74F151ASJX-B

新贴片直插DM74LS373WMX，DM74F151ASJX，DM74F161ASJX，6

新贴片直插DM74F161ASJX，DM74ALS245AN，DM74F151ASJX，6