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74LVC823A Datasheet(PDF) 3 Page - NXP Semiconductors |
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74LVC823A Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 12 page Philips Semiconductors Product specification 74LVC823A 9-bit D-type flip-flop with 5-volt tolerant inputs/outputs; positive-edge trigger (3-State) 1998 Sep 24 3 PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION 1 OE Output enable input (active LOW) 2, 3, 4, 5, 6, 7, 8, 9, 10 D0 to D8 Data inputs 11 MR Master reset (active LOW) 12 GND Ground (0 V) 13 CP Clock pulse (active rising) 14 CE Clock enable (active LOW) 23, 22, 21, 20, 19, 18, 17, 16, 15 Q0 to Q8 3-State flip-flop outputs 24 VCC Positive supply voltage FUNCTION TABLE OPERATING MODES INPUTS INTERNAL FLIP FLOPS OUTPUTS OPERATING MODES OE MR CE CP Dn INTERNAL FLIP-FLOPS Q0 to Q8 Clear L L X X X L L Load and read register L L H H L L ↑ ↑ l h L H L H Load register and disable outputs H H H H L L X X l h L H Z Z Hold L H H NC X NC NC H = HIGH voltage level h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition L = LOW voltage level l = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition Z = high impedance OFF-state ↑ = LOW–to–HIGH clock transition NC= no change PIN CONFIGURATION D 0 D 1 D 2 D 3 D 4 D 5 D 6 GND D 7 D 8 MR Q 0 Q 1 Q 2 Q 3 Q 4 V CC Q 5 Q 6 Q 7 Q 8 CE CP 1 2 3 4 5 6 7 8 9 10 11 12 20 21 22 23 24 19 18 17 16 15 14 13 OE SA00418 LOGIC SYMBOL MR 11 Q 7 Q 8 2 D 0 Q 0 19 20 21 22 23 9 10 D 7 D 8 8 D 6 Q 6 7 D 5 Q 5 6 D 4 Q 4 15 5 D 3 Q 3 16 4 D 2 Q 2 17 3 D 1 Q 1 18 13 14 1 CP CE OE SA00419 |
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