MC74HCT161A Просмотр технического описания (PDF) - Motorola => Freescale

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Компоненты Описание

производитель

MC74HCT161A

Presettable Counters

Motorola => Freescale 

MC54/74HCT161A MC54/74HCT163A

SWITCHING WAVEFORMS

tr

tf

90%

3.0V

Clock

1.3V

10%

GND

tw

1/fMAX

tPLH

tPHL

Any 90%

Output 1.3V

10%

tTLH

tTHL

Figure 1.

tw

3.0V

Reset

1.3V

GND

tPHL

Any

Output

Clock

1.3V

trec

3.0V

1.3V

GND

Figure 2.

Enable T

Ripple

Carry Out

tr

90%

1.3V

10%

tPLH

90%

1.3V

10%

tTLH

Figure 3.

tf

3.0V

GND

tPHL

tTHL

3.0V

Reset

1.3V

GND

tsu

th

3.0V

Clock

1.3V

GND

Figure 4. HCT163A Only

3.0V

Inputs P0,

P1, P2, P3

1.3V

GND

Enable T

Valid

3.0V

tsu

th

Load

1.3V

tsu

th

trec

or

3.0V

Enable P

GND

3.0V

Clock

1.3V

tsu

th

1.3V

GND

3.0V

Clock

1.3V

GND

GND

Figure 5.

Figure 6.

DEVICE

UNDER

TEST

TEST

POINT

OUTPUT

CL*

*Includes all probe and jig capacitance

Figure 7. Test Circuit

High–Speed CMOS Logic Data

5

DL129 — Rev 6

MOTOROLA

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