74F805 datasheet(5/8 Pages) PHILIPS

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Philips Semiconductors

Product specification

74F805/74F1805

Hex 2-input NOR drivers

September 14, 1990

AC ELECTRICAL CHARACTERISTICS

LIMITS

Tamb = +25°C

Tamb = 0°C to +70°C

SYMBOL

PARAMETER

TEST

VCC = +5.0V

VCC = +5.0V ± 10%

UNIT

CONDITION

CL = 50pF,

RL = 500Ω

CL = 50pF,

RL = 500Ω

MIN

TYP

MAX

MIN

MAX

tPLH

tPHL

Propagation delay

Dna, Dnb to Qn

Waveform 1

1.0

2.0

2.5

4.0

4.5

1.0

4.0

4.5

tsk(o)

Output skew1,2

Waveform 2

1.5

NOTES:

1. [tPN actual – tPM actual] for any output compared to any other output where N and M are either LH or HL.

2. Skew times are valid only under same test conditions (temperature, VCC, loading, etc.,).

AC WAVEFORMS

Dna, Dnb

tPHL

tPLH

SF00005

Waveform 1. Propagation delay for inverting output

tsk(0)

SF00455

Waveform 2. Output skew

NOTE: For all waveforms, VM = 1.5V.

TEST CIRCUIT AND WAVEFORMS

90%

10%

90%

10%

90%

10%

90%

10%

NEGATIVE

PULSE

POSITIVE

PULSE

AMP (V)

tTHL (tf )

INPUT PULSE REQUIREMENTS

rep. rate

tTLH

tTHL

1MHz

500ns

2.5ns

Input Pulse Definition

VCC

family

74F

D.U.T.

PULSE

GENERATOR

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

SF00006

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