74F189A datasheet(7/10 Pages) PHILIPS

Nome de Peças	74F189A

Descrição Electrónicos	64-bit TTL bipolar RAM, inverting 3-State

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Fabricante Electrônico	PHILIPS [NXP Semiconductors]

Página de início	http://www.nxp.com

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Philips Semiconductors

Product specification

74F189A

64-bit TTL bipolar RAM, inverting (3-State)

1990 Feb 23

7

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

Nº de peça semelhante - 74F189A

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National Semiconductor ...	74F189	166Kb / 8P	64-Bit Random Access Memory with TRI-STATEE Outputs
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National Semiconductor ...	74F189SC	166Kb / 8P	64-Bit Random Access Memory with TRI-STATEE Outputs

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