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PARAMETER MEASUREMENT INFORMATION

TEST

S1

(see Note C)

TEST CIRCUIT FOR OPEN-DRAIN OUTPUT

S1

GND

(see Note B)

VOLTAGE WAVEFORMS

PROPAGATION DELAY AND OUTPUT TRANSITION TIMES

PULSE

GENERATOR

DUT

(see Note A)

0.4 V

0.4 V

0.52 V

Input SDA

or SCL

EXPSDA1 or

EXPSCL1

EXPSDA2 or

EXPSCL2

Output SDA

or SCL

Effective

Stretch

PCA9518

SCPS132A – JUNE 2006 – REVISED JULY 2007

A.

B.

Ω for EXP

C.

D.

All input pulses are supplied by generators having the following characteristics: PRR

≤ 10 MHz, Z

slew rate

≥ 1 V/ns.

E.

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

Figure 2. Test Circuit and Voltage Waveforms

9

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