N74F191D datasheet(10/14 Pages) PHILIPS

Part #	N74F191D

Description	Up/down binary counter with reset and ripple clock

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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Philips Semiconductors

Product specification

74F191

Up/Down binary counter with reset and ripple clock

1995 Jul 17

10

TEST CIRCUIT AND WAVEFORM

tw

90%

VM

10%

90%

VM

10%

90%

VM

10%

90%

VM

10%

NEGATIVE

PULSE

POSITIVE

PULSE

tw

AMP (V)

0V

tTHL (tf )

INPUT PULSE REQUIREMENTS

rep. rate

tw

tTLH

tTHL

1MHz

500ns

2.5ns

Input Pulse Definition

VCC

family

74F

D.U.T.

PULSE

GENERATOR

RL

CL

RT

VIN

VOUT

Test Circuit for Totem-Pole Outputs

DEFINITIONS:

RL = Load resistor;

see AC ELECTRICAL CHARACTERISTICS for value.

CL = Load capacitance includes jig and probe capacitance;

see AC ELECTRICAL CHARACTERISTICS for value.

RT = Termination resistance should be equal to ZOUT of

pulse generators.

tTHL (tf )

tTLH (tr )

AMP (V)

amplitude

3.0V

1.5V

VM

SF00006

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Manufacturer	Part #	Datasheet	Description
National Semiconductor ...	54F191DM	196Kb / 10P	Up/Down Binary Counter with Preset and Ripple Clock
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Texas Instruments	SN74F190A	126Kb / 7P	[Old version datasheet] SYNCHRONOUS 4-BIT UP/DOWN DECADE COUNTER WITH RESET AND RIPPLE CLOCK
National Semiconductor ...	54F190DM	178Kb / 10P	Up/Down Decade Counter with Preset and Ripple Clock
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N74F191D Datasheet(PDF) 10 Page - NXP Semiconductors

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