PCA9518D,118 NXP Semiconductors, PCA9518D,118 Datasheet - Page 3

• 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
4. Block diagram
PCA9518_5
Product data sheet
Fig 1.
EXPSDA1
EXPSDA2
EXPSCL1
EXPSCL2
SDA0
SDA1
SDA2
Block diagram of PCA9518
SCL0
SCL1
SCL2
EN1
EN2
A more detailed view of
The output pull-down voltage of each internal buffer is set for approximately 0.5 V, while
the input threshold of each internal buffer is set about 0.07 V lower, when the output is
internally driven LOW. This prevents a lock-up condition from occurring.
Fig 2.
Buffer detail
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
BUFFER
Rev. 05 — 2 December 2008
Figure 1
enable
data
LOGIC
LOGIC
buffer is shown in
HUB
HUB
GND
V
CC
BUFFER
BUFFER
BUFFER
BUFFER
Figure
Expandable 5-channel I
002aac531
PCA9518
to output
in
inc
2.
002aae325
PCA9518
© NXP B.V. 2008. All rights reserved.
2
C-bus hub
SCL4
SCL3
SDA4
SDA3
EN4
EN3
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