型号 / 厂家，封装，批号，备注，订购

74AC253DC / Various,Datasheet,07+,4-Line Digital Multi 订购 PDF文档

74AC253DCQR / National Semiconductor,Datasheet,07+,Dual 4-Input Multipl 订购 PDF文档

74AC253LC / Various,Datasheet,07+,4-Line Digital Multi 订购 PDF文档

74AC253LCQR / National Semiconductor,Datasheet,07+,Dual 4-Input Multipl 订购 PDF文档

74AC253M-R / ,,最新批号,原装现货 订购 PDF文档

74AC253PCQR / National Semiconductor,Datasheet,07+,Dual 4-Input Multipl 订购 PDF文档

74AC253-R / ,,最新批号,原装现货 订购 PDF文档

74AC257CW / Fairchild Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档

74AC257DC / Various,Datasheet,07+,2-Line Digital Multi 订购 PDF文档

74AC257DCQR / National Semiconductor,Datasheet,07+,Quad 2-Input Multipl 订购 PDF文档