Datasheet

 

 



    

SCLS470A − MARCH 2003 − REVISED OCTOBER 2003

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

FUNCTION TABLE

INPUTS OUTPUTS

PRE CLR CLK J K Q Q

L H X X X H L

H LXXXLH

L LXXXH

†

H H ↑ LLLH

H H ↑ H L Toggle

H H ↑ LHQ0Q0

H H ↑ HHHL

H H L X X Q0 Q0

†

This configuration is nonstable; that is, it does not persist

when either PRE

or CLR returns to its inactive (high) level.

logic diagram, each flip-flop (positive logic)

PRE

CLK

CLR