MC74HCT574ADTR2 데이터 시트보기 (PDF) - ON Semiconductor

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MC74HCT574ADTR2

Octal 3−State Noninverting D Flip−Flop with LSTTL−Compatible Inputs

ON Semiconductor 

tr

CLOCK

Q

2.7 V

1.3 V

0.3 V

tw

90%

1.3 V

10%

1/fmax

tPLH

tTLH

tf

tPHL

tTHL

Figure 3.

MC74HCT574A

SWITCHING WAVEFORMS

3.0 V

GND

OUTPUT

ENABLE

Q

Q

1.3 V

tPZL

tPLZ

1.3 V

tPZH

tPHZ

1.3 V

Figure 4.

3.0 V

GND

HIGH

IMPEDANCE

10% VOL

90% VOH

HIGH

IMPEDANCE

VALID

3.0 V

1.3 V

DATA

GND

tsu

th

3.0 V

CLOCK

1.3 V

GND

Figure 5.

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 6. Test Circuit

DEVICE

UNDER

TEST

TEST POINT

OUTPUT

1 kW

CL*

CONNECT TO VCC WHEN

TESTING tPLZ AND tPZL.

CONNECT TO GND WHEN

TESTING tPHZ AND tPZH.

*Includes all probe and jig capacitance

Figure 7. Test Circuit

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