0.8mm间距QFN芯片封装 Altium AD元件库 PCB封装库（AD库）,包括QFN4，QFN12，QFN16，QFN20，QFN28，QFN36 0.8mm间距封装文件，详细类别如下： Component Count : 13 Component Name ----------------------------------------------- QFN80P300X300-4VN QFN80P300X300-4WN QFN80P400X400-12VN QFN80P400X400-12WN QFN80P500X500-16VN QFN80P500X500-16WN QFN80P600X600-20VN QFN80P600X600-20WN QFN80P700X700-28VN QFN80P700X700-28WN QFN80P800X800-32VN QFN80P800X800-32WN QFN80P900X900-36WN