原装74HC4538D74HC643D74HC51D￥2.90去看看永恒电子元器件发布了原装74HC4538D 74HC51D 74HC541 74HC643D74HC652D74HC646N74HC646D74HC645N￥10去看看电子元件88888发布了全新74HC652D 74HC646N 74HC646D 74HC645N 74HC643A
