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PARAMETER MEASUREMENT INFORMATION

t

h

t

su

FromOutput

UnderTest

C

(seeNote A)

L

LOADCIRCUIT

S1

V

LOAD

Open

GND

R

L

DataInput

TimingInput

0V

0V

0V

t

W

Input

0V

Input

Output

Waveform1

S1atV

(seeNoteB)

LOAD

Output

Waveform2

S1atGND

(seeNoteB)

V

OL

V

OH

0V

»0V

Output

Output

t

/t

PLH

PHL

Open

TEST

S1

Output

Control

V

M

V

M

V

M

V

M

V

M

1.8V

0.15V

±

2.5V

0.2V

±

3.3V

0.3V

±

5V

0.5V

±

1MW

1MW

1MW

1MW

V

CC

R

L

2× V

CC

2× V

CC

6V

2× V

CC

V

LOAD

C

L

15pF

15pF

15pF

15pF

0.15V

0.15V

0.3V

0.3V

V

D

3V

V

I

V

V

1.5V

V

V

M

£2ns

£2ns

£2.5ns

£2.5ns

INPUTS

R

L

t /t

r

f

V

CC

V

CC

V

CC

V

LOAD

t

/t

PLZ

PZL

GND

t

/t

PHZ

PZH

VOLTAGEWAVEFORMS

ENABLE ANDDISABLETIMES

LOW- ANDHIGH-LEVEL ENABLING

VOLTAGEWAVEFORMS

PROPAGATIONDELAY TIMES

INVERTING ANDNONINVERTINGOUTPUTS

NOTES: A. C includesprobeandjigcapacitance.

B. Waveform1isforanoutputwithinternalconditionssuchthattheoutputislow,exceptwhendisabledbytheoutputcontrol.

Waveform2isforanoutputwithinternalconditionssuchthattheoutputishigh,exceptwhendisabledbytheoutputcontrol.

C. Allinputpulsesaresuppliedbygeneratorshavingthefollowingcharacteristics:PRR

10MHz,Z =50

.

D. Theoutputsaremeasuredoneatatime,withonetransitionpermeasurement.

E. t

andt

arethesameast .

F. t

andt

arethesameast .

G. t

andt

arethesameast .

H. Allparametersandwaveformsarenotapplicabletoalldevices.

L

O

PLZ

PHZ

dis

PZL

PZH

en

PLH

PHL

pd

£

W

VOLTAGEWAVEFORMS

PULSEDURATION

VOLTAGEWAVEFORMS

SETUP ANDHOLDTIMES

V

I

V

I

V

I

V

M

V

M

V

/2

LOAD

t

PZL

t

PLZ

t

PHZ

t

PZH

V

– V

OH

D

V

+V

OL

D

V

M

V

M

V

M

V

M

V

OL

V

OH

V

I

V

I

V

OH

V

OL

V

M

V

M

V

M

V

M

t

PLH

t

PHL

t

PLH

t

PHL

SN74LVC2G80

DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP

SCES309E – DECEMBER 2001 – REVISED FEBRUARY 2007

Figure 1. Load Circuit and Voltage Waveforms

6

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