全新IRFB4227 SN74LS251J SN74LS24ON SN74LS24AN SN74LS249N

SN74LS249N HD74LS251P 253/257/258/259/279/283/298/353P DIP16

SN74LS249N HD74LS251P 253/257/258/259/279/283/298/353P DIP16

全新SN74LS594N SN74LS629N SN74LS249N SN74LS251N SN74LS257N

SN74LS240N 74LS241 244 245 247 248 249 251 253 257 258 259N

SN74LS249N HD74LS251P 253/257/258/259/279/283/298/353P DIP16

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DIP16逻辑RS触发器/锁存器

SN74LS249N HD74LS251P 253/257/258/259/279/283/298/353P DIP16

正品原装进口直插16脚 SN74LS249N 74LS249P HC249N 74全系列

74LS系列SN74LS249N/251N/253N

SN74LS249全新IC芯片集成电路

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