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贴片直插MC74HC4046AN，MC74HC4020AD，MC74HC4040AF，4
贴片直插MC74HC4051AN，MC74HC4040AD，MC74HC4046AF，4
丝印MC74HC4046AF-MC74HC4046AD-MC74HC4040BP-MC74HC4040AN
丝印MC74HC4040AD MC74HC4024DT MC74HC4020AN MC74HC4020AF
