74HC74 데이터 시트보기 (PDF) - ON Semiconductor

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74HC74

Dual D Flip−Flop with Set and Reset

ON Semiconductor 

74HC74

SWITCHING WAVEFORMS

tf

tr

CLOCK

90%

50%

tw

VCC

SET OR

50%

RESET

VCC

GND

10%

GND

tPHL

tw

1/fmax

Q OR Q

50%

Q or Q

90%

50%

10%

tPLH

tTLH

tPHL

tTHL

tPLH

Q OR Q

50%

trec

CLOCK

VCC

50%

GND

Figure 1.

Figure 2.

VALID

VCC

DATA

50%

GND

tsu

th

VCC

50%

CLOCK

GND

Figure 3.

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 4.

4, 10

SET

2, 12

DATA

1, 13

RESET

3, 11

CLOCK

Figure 5. EXPANDED LOGIC DIAGRAM

5, 9

Q

6, 8

Q

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