PCA9527DP,118 NXP Semiconductors, PCA9527DP,118 Datasheet - Page 9

• Manufacturer Part Number: PCA9527DP,118
• Description: IC BUFFER SHIFT DDC 3CH 10-TSSOP
• Manufacturer: NXP Semiconductors
• Type: Bufferr

Specifications of PCA9527DP,118

• Tx/rx Type: I²C Logic
• Delay Time: 115ns
• Capacitance - Input: 8pF
• Voltage - Supply: 2.7 V ~ 5.5 V
• Current - Supply: 100mA
• Mounting Type: Surface Mount
• Package / Case: 10-TSSOP
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: TSSOP
• Rad Hardened: No
• Logic Family: PCA
• Number Of Channels Per Chip: 3
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Interface: DDC, I2C, SMBus
• Minimum Operating Temperature: - 40 C
• Propagation Delay Time: 115 ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4770-2

NXP Semiconductors
PCA9527_1
Product data sheet
Fig 7.
Sink or LCD TV application
RECEIVER
HDMI
3.3 V
(optional)
10 k
According to
I
the internal driver on port B to turn on, causing port B to pull down to about 0.5 V. When
port B of the PCA9527 falls, first a CMOS hysteresis type input detects the falling edge
and causes the internal driver on port A to turn on and pull the port A pin down to ground.
In order to illustrate what would be seen in a typical application, refer to
Figure
If the bus master in
shown in
transmission except that the HIGH level may be as low as 2.7 V, and the turn on and turn
off of the acknowledge signals are slightly delayed.
The master drives the B bus to ground or lets it float to V
at the falling edge of the 8
SDAA on the A bus to ground, causing the PCA9527 to pull SDAB on the B bus to 0.5 V.
At the falling edge of the 9
the A bus.
Multiple PCA9527 port A sides can be connected in a star configuration
allowing all nodes to communicate with each other.
Multiple PCA9527s can be connected in series
to port B. I
number of devices that can be connected in series is limited by repeater
delay/time-of-flight considerations on the maximum bus speed requirements.
2
C-bus, a comparator detects the falling edge when it goes below 0.3V
10 k
12.
10 k
Figure 11
2
C-bus slave devices can be connected to any of the bus segments. The
10 k
Figure
0.1 F
3-channel bidirectional bus extender for HDMI, I
SDAB
SCLB
CECB
EN
would be observed on the A bus. This looks like a normal I
V
Figure 5
5, when port A of the PCA9527 is pulled LOW by a driver on the
CC(B)
PCA9527
Rev. 01 — 29 June 2009
GND
th
th
V
clock, master releases SDAB on the B bus and slave pulls
clock, the master again drives the B bus and slave releases
CC(A)
were to write to the slave through the PCA9527, waveforms
SDAA
SCLA
CECA
0.1 F
10 k
47 k
(Figure
LCD TV
22
22
5 V
9) as long as port A is connected
CC(B)
HDMI cable
DDC line
as it sends data to the slave
2
PCA9527
C-bus and SMBus
© NXP B.V. 2009. All rights reserved.
CC(A)
DVD (source)
Figure 11
PCA9512A
(Figure
PCA9507
PCA9515
PCA9517
PCA9527
002aad973
and causes
2
C-bus
8),
and
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