SN74ALS640BDWG4规格参数
相关型号
SN74ALS640BDWR SN74ALS640BDWRE4 SN74ALS640BDWRG4 SN74ALS640BN SN74ALS640BNE4 SN74ALS640BNSR SN74ALS640BNSRE4 SN74ALS640BNSRG4 SN74ALS641A SN74ALS641A-1DB