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74HC157NFSC74HC161ADR274HC157N65274HC157M
74HC161D65374HC161FPEL74HC161N65274HC163D653
74HC161A74HC161074HC161D74HC161M
PBFREESN74HC126NSN74HC161N全新
SN74HC161JSN74HC161DSN74HC161NSN74HC163D
二进制计数器SN74HC161N芯片
SN74HC147芯片163NDIP
封装SN74HC147芯片163N
HCDIP16162161
TC74HC161AP计数器HD74HC161PSN74HC161N
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