74 Series digital circuit of 74LS395A,74F395 4-bit cascadable shift register (tristate)

Published:2011/8/1 22:50:00 Author:Lucas | Keyword: 74 Series , digital circuit , 4-bit cascadable, shift register , tristate | From:SeekIC

It is the tri-state 4-bit cascaded parallel input and output shift register; 74LS395A absorption current is three times greater than 74LS395. When output control is high, the tri-state output disable is high impedance, but the timing work and QD output of the register is not affected. a~ d = the corresponding steady input level of A~ D. QA0~ QD0= the corresponding level of QA~QD before the establishment of steady-state input conditions. QAn~ QDn= the corresponding level of QA~ QD at the latest time hopping.



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