SN74ALS640B-1NE4规格参数
相关型号
SN74ALS640B-1NG4 SN74ALS640B-1NSR SN74ALS640B-1NSRE4 SN74ALS640B-1NSRG4 SN74ALS640BDW SN74ALS640BDWE4 SN74ALS640BDWG4 SN74ALS640BDWR SN74ALS640BDWRE4 SN74ALS640BDWRG4