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74LVC74ADB Datasheet(PDF) 3 Page - NXP Semiconductors |
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74LVC74ADB Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 10 page Dual D-type flip-flop with set and reset; positive-edge trigger Philips Semiconductors Product Specification 74LVC74A 1998 Jun 17 3 PIN DESCRIPTION PIN NUMBER SYMBOL NAME AND FUNCTION 1, 13 1RD, 2RD Asynchronous reset-direct input (active LOW) 2, 12 1D, 2D Data inputs 3, 11 1CP, 2CP Clock input (LOW-to-HIGH, edge triggered) 4, 10 1SD, 2SD Asynchronous set-direct input (active LOW) 5, 9 1Q, 2Q True flip-flop outputs 6, 8 1Q, 2Q Complement flip-flop outputs 7 GND Ground (0 V) 14 VCC Positive supply voltage LOGIC SYMBOL SV00492 410 113 1SD 2SD 1RD 2RD SD RD 2 12 3 11 1D 2D 1CP 2CP 1Q 2Q 5 9 1Q 2Q 5 9 D CP Q FF Q FUNCTION TABLE INPUTS OUTPUTS SD RD CP D Q Q L H X X H L H L X X L H L L X X H H INPUTS OUTPUTS SD RD CP D Qn+1 Qn+1 H H ° L L H H H ° H H L NOTES: H = HIGH voltage level L = LOW voltage level X = don“t care ° = LOW-to-HIGH CP transition Qn+1 = state after the next LOW-to-HIGH CP transition FUNCTIONAL DIAGRAM SV00494 CP FF1 DQ Q 1D 2 1CP 3 4 SD 1SD 1 1RD RD 6 1Q 1Q 5 CP FF2 DQ Q 2D 12 2CP 11 10 SD 2SD 13 2RD RD 8 2Q 2Q 9 |
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