74LVC74AD datasheet(3/10 Pages) PHILIPS

부품명	74LVC74AD

상세설명	Dual D-type flip-flop with set and reset; positive-edge trigger

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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3 / 10 page

Dual D-type flip-flop with set and reset;

positive-edge trigger

Philips Semiconductors

Product Specification

74LVC74A

1998 Jun 17

PIN DESCRIPTION

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

GND

Ground (0 V)

VCC

Positive supply voltage

LOGIC SYMBOL

SV00492

410

113

1SD 2SD

1RD 2RD

1CP

2CP

FUNCTION TABLE

INPUTS

OUTPUTS

INPUTS

OUTPUTS

Qn+1

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

1CP

1SD

1 1RD

CP FF2

2CP

2SD

13 2RD

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