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贴片直插IDT74FCT540SOB IDT74FCT540CTL IDT74FCT540CTQ 9
TC74VHCT541AF(EL) MSM511000B-60R IDT74FCT540CTQ AR6004X-6C3E
IDT74FCT540TSO IDT74FCT540CTQ IDT74FCT540ATQ IDT74FCT534ATQ