54s195 / 74s195 sttl 型4 位并行存取移位寄存器

hd74ls195ap dip16原装现货4位并行存取移位寄存器 质优价廉

hd74ls195afpel 4-bit parallel-access shift register

upb74ls195c ic芯片sn74s195n sn74s195n sn74ls195n 74s195n现货

sn74ls195an hd74ls195p sn74ls195 dip-16 位并行存取移位寄存器