PCA9518A_3

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 03 — 3 December 2008

9 of 23

NXP Semiconductors

PCA9518A

It is important to note that any arbitration or clock stretching events on Bus 1 require that

in the Section 9 “Static characteristics”) to be recognized by the PCA9518A and then

transmitted to Bus 0.

Fig 6.

Bus waveforms

Bus 0

SCL of

master

SDA of

master

EXPSDA1

EXPSDA2

expansion

bus

EXPSCL1

EXPSCL2

SCL of

slave

SDA of

slave

Bus 1

Bus n

with n > 1

002aac534