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CD54HCT40105F CD54HCT393F3A CD54HCT390F3A CD54HCT377F3A
CD54HCT193F3A/5962-9084801MEA - MC74HC390N - UPB8287C - 原装
JM38510/65802BEA SNJ54S258J CD54HCT390F3A SNJ54HC148J
CD54HCT109F3A CD4028BF3A UC1524AJ883B SNJ54LS390J CD4051BF3A
CD54HCT390F3A▕DIP寄存器