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SN74AHCT74 Datasheet(PDF) 2 Page - Texas Instruments |
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SN74AHCT74 Datasheet(HTML) 2 Page - Texas Instruments |
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SN54AHCT74, SN74AHCT74 DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET SCLS263N – DECEMBER 1995 – REVISED JULY 2003 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 FUNCTION TABLE (each flip-flop) INPUTS OUTPUTS PRE CLR CLK D Q Q L H X X H L H LX XL H L LX X H† H† H H ↑ HH L H H ↑ LL H H H L X Q0 Q0 † This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level. logic diagram, each flip-flop (positive logic) TG C C TG C TG C C C C TG C C PRE CLK D CLR Q Q C |
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