新SN7493AJ DS75183N CXA1125P RC4565DD TD62705P R

贴片直插SN7442AJ，SN74393J，SN74285N，SN74298J，SN7493AJ，4

全新SN7493AM SN7493AJ SN7492AN SN7491AN SN7491AJ

7493 5493 SN5493J DM5493AJ SN5493J 进口双列14直插脚DIP陶封

贴片直插SN54HC08 SN54F02J SN54157J SN5490AJ SN7493AN 5