PCA9518APW,512 NXP Semiconductors, PCA9518APW,512 Datasheet - Page 3

• Manufacturer Part Number: PCA9518APW,512
• Description: IC I2C HUB 5CH EXPANDBL 20-TSSOP
• Manufacturer: NXP Semiconductors

Specifications of PCA9518APW,512

• Applications: CMOS Bus Controller
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 20-TSSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4245-5; 935284254512; PCA9518APW

NXP Semiconductors
4. Block diagram
PCA9518A_3
Product data sheet
Fig 1.
EXPSDA1
EXPSDA2
EXPSCL1
EXPSCL2
SDA0
SDA1
SDA2
Block diagram of PCA9518A
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. 03 — 3 December 2008
Figure 1
enable
data
LOGIC
LOGIC
buffer is shown in
HUB
HUB
V
V
DD
SS
BUFFER
BUFFER
BUFFER
BUFFER
Figure
Expandable 5-channel I
002aac531
PCA9518A
to output
in
inc
2.
PCA9518A
002aac530
© NXP B.V. 2008. All rights reserved.
2
C-bus hub
SCL4
SCL3
SDA4
SDA3
EN4
EN3
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