TC74LCX540FTELM规格参数
相关型号
TC74LCX540FW TC74LCX540FW-ELP TC74LCX541 TC74LCX541F TC74LCX541F(EL,K,F TC74LCX541F(F) TC74LCX541F(K,F) TC74LCX541FK TC74LCX541FK(EL,K) TC74LCX541FT