PCA9518D,118 NXP Semiconductors, PCA9518D,118 Datasheet - Page 7

• Manufacturer Part Number: PCA9518D,118
• Description: IC I2C BUS HUB 5-CH 20SOIC
• Manufacturer: NXP Semiconductors

Specifications of PCA9518D,118

• Applications: Buffer
• Interface: I²C, SMBus
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 20-SOIC (7.5mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935272404118; PCA9518D-T; PCA9518D-T

NXP Semiconductors
PCA9518_5
Product data sheet
Fig 5.
SUBSYSTEM 5
SUBSYSTEM 6
not connected
100 kHz
400 kHz
disabled;
Only two of the five channels on the PCA9518 Device 2 are being used. EN3 and EN4 are connected to GND to disable
channels 3 and 4 and/or SDA3/SCL3 and SDA4/SCL4 are pulled up to V
port, but if unused then it must be pulled up to V
The pull-ups shown on Device 2 channels 3 and 4 are not required if their enable pins (ENn) are permanently held LOW.
Typical application: multiple expandable 5-channel I
SDA
SDA
SCL
SCL
3.3 V
5 V
or 5 V
or 5 V
3.3 V
3.3 V
is 1 s or, when the bus 0 SDA reaches 0.7V
EXPSDA2 and EXPSDA1 are HIGH the rest of the SDA lines are allowed to rise. The
same description applies for the EXPSCL1, EXPSCL2, and SCL pins.
SDA1
SCL1
SDA2
SCL2
SDA3
SCL3
SDA4
SCL4
PCA9518
DEVICE 2
GND
V
CC
EXPSDA1
EXPSDA2
EXPSCL1
EXPSCL2
SDA0
SCL0
EN1
EN2
EN3
EN4
Rev. 05 — 2 December 2008
3.3 V
CC
since there is no enable pin.
MASTER
400 kHz
BUS
SDA
SCL
2
C-bus hubs
CC
CC
. SDA0 and SCL0 can be used as a normal I
, whichever occurs first. After both
EXPSDA1
EXPSDA2
EXPSCL1
EXPSCL2
SDA0
SCL0
EN1
EN2
EN3
EN4
Expandable 5-channel I
PCA9518
DEVICE 1
GND
V
CC
SDA1
SDA2
SDA3
SDA4
SCL1
SCL2
SCL3
SCL4
PCA9518
3.3 V
3.3 V
5 V
5 V
© NXP B.V. 2008. All rights reserved.
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SUBSYSTEM 1
SUBSYSTEM 2
SUBSYSTEM 3
SUBSYSTEM 4
2
C-bus hub
400 kHz
400 kHz
100 kHz
100 kHz
002aae326
2
C-bus
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