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SN74HC165: SER input function

Part Number: SN74HC165

Hi Team,

My customer is asking what the basic function of SN74HC165 , I think customer can look into d/s figure 4 and Table 1 for reference,

however , there's no example for SER pin's function, could you kindly help for explain how SER pin work?

let says, there's data 11111111(8 bit binary code) shift from device 1 to device 2  , and device 2's parallel input pin(A~H) is carry the bit 10101011 as d/s figure 4 shown, then what would be the series output of the device 2's QH pin when shift function is on(SH/LD#=H , CLK= rising , CLK INH=L)?

d/s figure 4.

d/s table 1.