二进制计数器COUNTERBINARY
现货原装全新BINARY
74HC157NFSC74HC161ADR274HC157N65274HC157M
74HC161D65374HC161FPEL74HC161N65274HC163D653
74HC161D74HC653
74HC653161
BINARYCOUNT16DIP4BIT
74HC652118
74HC158652
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