t

h

t

su

From Output

Under Test

C

(see Note A)

L

LOAD CIRCUIT

S1

V

LOAD

Open

GND

R

L

Data Input

Timing Input

0 V

0 V

0 V

t

W

Input

0 V

Input

Output

Waveform 1

S1 at V

(see Note B)

LOAD

Output

Waveform 2

S1 at GND

(see Note B)

V

OL

V

OH

0 V

≈0 V

Output

Output

TEST

S1

t

/t

PLH

PHL

Open

Output

Control

V

M

V

M

V

M

V

M

V

M

1.8 V

0.15 V

±

2.5 V

0.2 V

±

3.3 V

0.3 V

±

5 V

0.5 V

±

1 k

Ω

500

Ω

500

Ω

500

Ω

V

CC

R

L

2 × V

CC

2 × V

CC

2 × V

CC

2 × V

CC

V

LOAD

C

L

30 pF

30 pF

50 pF

50 pF

0.15 V

0.15 V

0.3 V

0.3 V

V

CC

V

I

V

V

V

V

M

≤2 ns

≤2 ns

≤2.5 ns

≤2.5 ns

INPUTS

R

L

t /t

r

f

V

CC

V

CC

V

CC

V

LOAD

t

/t

PLZ

PZL

GND

t

/t

PHZ

PZH

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

LOW- AND HIGH-LEVEL ENABLING

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

INVERTING AND NONINVERTING OUTPUTS

NOTES: A. C includes probe and jig capacitance.

B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.

C. All input pulses are supplied by generators have the following characteristics: PRR

10 MHz, Z = 50

.

D. The outputs are measured one at a time, with one transition per measurement.

E. t

and t

are the same as t .

F. t

and t

are the same as t .

G. t

and t

are the same as t .

H. All parameters and waveforms are not applicable to all devices.

L

O

PLZ

PHZ

dis

PZL

PZH

en

PLH

PHL

pd

≤

Ω

VOLTAGE WAVEFORMS

PULSE DURATION

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

V

I

V

I

V

I

V

M

V

M

V

/2

LOAD

t

PZL

t

PLZ

t

PHZ

t

PZH

V

– V

OH

∆

V

+ V

OL

∆

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

V

SN74LVC2G66-Q1

SCES829A – JUNE 2011 – REVISED JULY 2012

www.ti.com

PARAMETER MEASUREMENT INFORMATION (continued)

Figure 5. Load Circuit and Voltage Waveforms

8

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