3

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Logic Diagrams

(positive logic)

DM74AS646

DM74AS648

Different Modes of Control for DM74AS646, DM74AS648

Storage From A, B or A and B

Transfer Stored Data to A or B

(Note 2)

Real-Time Transfer Bus A to Bus B

(Note 2)

Real-Time Transfer Bus B to Bus A

(Note 2)

Note 2: The complement of A and B data are stored and transferred for DM74AS648