MC74HC393A Просмотр технического описания (PDF) - ON Semiconductor

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MC74HC393A

Dual 4−Stage Binary Ripple Counter

ON Semiconductor 

MC74HC393A

SWITCHING WAVEFORMS

tf

tr

90%

VCC

CLOCK

50%

10%

GND

tw

1/fmax

tPLH

tPHL

90%

Q 50%

10%

tTLH

tTHL

Figure 1.

DEVICE

UNDER

TEST

TEST

POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 3. Test Circuit

tw

RESET

50%

VCC

GND

tPHL

Q

CLOCK

50%

trec

VCC

50%

GND

Figure 2.

CLOCK 1, 13

EXPANDED LOGIC DIAGRAM

CQ

DQ

3, 11 Q1

CQ

DQ

4, 10 Q2

CQ

DQ

5, 9 Q3

CQ

DQ

6, 8 Q4

RESET 2, 12

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