DSA2IH0056138.pdf

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Partial File Text HD74HCT640,HD74HCT643 * B o th the H D 7 4 H C T 6 4 0 an d the H D 7 4 H C T 6 4 3 have on e | active lo w enable in p u t (G ), and a dire ctio n co n tro l ( D IR ) . W h e n the D I R in p u t is
Datasheet Type Scan
ECAD Model

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