pca9518a NXP Semiconductors, pca9518a Datasheet - Page 8

• Manufacturer Part Number: pca9518a
• Description: Pca9518a Expandable 5-channel I?c-bus Hub
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9518A_1
Product data sheet
Fig 6. Bus waveforms
expansion
Bus 0
Bus 1
bus
EXPSDA1
EXPSDA2
EXPSCL1
EXPSCL2
with n > 1
SDA of
SDA of
SCL of
master
master
SCL of
Bus n
slave
slave
It is important to note that any arbitration or clock stretching events on Bus 1 require that
the V
in the
transmitted to Bus 0.
t
PHL1
t
t
PHL2
PHL
OL
Section 9 “Static
V
OL
of the devices on Bus 1 be 70 mV below the V
of master
t
t
characteristics”) to be recognized by the PCA9518A and then
PLH2
PLH
Rev. 01 — 6 June 2007
t
PLH2
, t
PLH1
V
9
OL
th
of slave
clock cycle
t
stretch
V
OL
V
Expandable 5-channel I
OL
of PCA9518A
OL
of PCA9518A
of the PCA9518A (see V
PCA9518A
9
th
© NXP B.V. 2007. All rights reserved.
clock cycle
2
C-bus hub
002aac534
OL
8 of 21
V
ILc