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M74HC242B1R M74HC241M1R M74HC241B1R m74hc241b1r M74HC240TTR
M74HC240M1R M74HC240BIR M74HC240B1R m74hc240b1r M74HC240-1P
全新原装 ST/意法 型号:M74HC240M1R 丝印:74HC240 封装:SOP-20
贴插DS14C238TWM 54LS20BCAJC M74HC240M1R AD5161BRM50 N
贴片直插KN4401S-RTK，KRC402E-RTK，M74HC240M1R，MA3062WA-TX
