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N74F37D

Quad 2-input NAND buffer

Philips Electronics 

Philips Semiconductors

Quad 2-input NAND buffer

Product specification

74F37

AC ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

tPLH

Propagation delay

tPHL

Dna, Dnb to Qn

AC WAVEFORMS

TEST

CONDITION

Waveform 1

LIMITS

VCC = +5.0V

Tamb = +25°C

CL = 50pF, RL = 500Ω

VCC = +5.0V ± 10%

Tamb = 0°C to +70°C

CL = 50pF, RL = 500Ω

MIN

TYP MAX

MIN

MAX

2.5

3.5

5.5

2.0

6.5

1.5

2.5

4.5

1.5

5.0

UNIT

ns

Dna, Dnb

VM

VM

tPHL

tPLH

Qn

VM

VM

SF00005

Waveform 1. Propagation Delay for Inverting Outputs

NOTE:

For all waveforms, VM = 1.5V.

TEST CIRCUIT AND WAVEFORMS

VIN

PULSE

GENERATOR

VCC

VOUT

D.U.T.

NEGATIVE

PULSE

90%

tw

VM

10%

tTHL (tf )

VM

10%

tTLH (tr )

90%

AMP (V)

0V

RT

CL RL

Test Circuit for Totem-Pole Outputs

POSITIVE

PULSE

10%

tTLH (tr )

90%

VM

tw

tTHL (tf )

90%

VM

AMP (V)

10%

0V

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.

Input Pulse Definition

family

74F

INPUT PULSE REQUIREMENTS

amplitude VM rep. rate

tw

tTLH

3.0V 1.5V 1MHz 500ns 2.5ns

tTHL

2.5ns

SF00006

May 24, 1990

4

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