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Pericom Semiconductor

PI4MSD5V9540B Datasheet Preview

PI4MSD5V9540B Datasheet

2 Channel I2C bus Multiplexer

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PI4MSD5V9540B
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2 Channel I2C bus Multiplexer
Features
1-of-2 bidirectional translating multiplexer
I2C-bus interface logic
Operating power supply voltage:1.65 V to 5.5 V
Allows voltage level translation between 1.2V,
Description
The PI4MSD5V9540B is a 1-of-2 bidirectional
translating multiplexer, controlled via the I2C bus
The SCL/SDA upstream pair fans out to two
SCx/SDx downstream pairs, or channels. Only one
1.8V,2.5 V, 3.3 V and 5 V buses
Low standby current
Low Ron switches
Channel selection via I2C bus
Power-up with all multiplexer channels deselected
Capacitance isolation when channel disabled
No glitch on power-up
Supports hot insertion
5 V tolerant inputs
0 Hz to 400 kHz clock frequency
ESD protection exceeds 8000 V HBM per JESD22-
SCx/SDx channel is selected at a time, determined
by the contents of the programmable control register.
A power-on reset function puts the registers in their
default state and initializes the I2C bus state machine
with no channels selected.
The pass gates of the multiplexer are constructed
such that the VCC pin can be used to limit the maximum
high voltage that is passed by the PI4MSD5V9540B.
This allows the use of different bus voltages on each
SCx/SDx pair, so that1.2V, 1.8 V, 2.5 V or 3.3 V parts
can communicate with 5 V parts without any additional
A114, and 1000 V CDM per JESD22-C101
Latch-up testing is done to JEDEC Standard
protection. External pull-up resistors can pull the bus up
to the desired voltage level for this channel. All I/O pins
JESD78 which exceeds 100 mA
Packages offered: SOIC-8W,MSOP-
are 5 V tolerant.
8U,TDFN2x3-8ZE
Pin Configuration
MSOP
SOIC
TDFN
Pin Description
Pin No Pin Name Type
1 SCL I/O
2
SDA
I/O
3
VCC
Power
4 SD0 I/O
5 SC0 I/O
6
GND
GND
7 SD1 I/O
8 SC1 I/O
Description
serial clock line
serial data line
supply voltage
serial data 0
serial clock 0
supply ground
serial data 1
serial clock 1
2015-07-0032
PT0522-4 08/18/15
1




Pericom Semiconductor

PI4MSD5V9540B Datasheet Preview

PI4MSD5V9540B Datasheet

2 Channel I2C bus Multiplexer

No Preview Available !

PI4MSD5V9540B
2 Channel I2C bus Multiplexer
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Block Diagram
Figure 1: Block Diagram
Maximum Ratings
Storage Temperature .................................................55°C to +125°C
Supply Voltage port B .................................................0.5V to +6.0V
Supply Voltage port A ................................................0.5V to +6.0V
DC Input Voltage ....................................................... 0.5V to +6.0V
Control Input Voltage (EN).................................. 0.5V to +6.0V
Total power dissipation (1).......................................................100mW
Input current(EN,VCCA,VCCB,GND).....................................50mA
ESD: HBM Mode .....................................................................8000V
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Recommended operation conditions
Symbol
Parameter
VCC
VEN
VIO
Δt /ΔV
VCCA Positive DC Supply Voltage
Enable Control Pin Voltage
I/O Pin Voltage
Input transition rise or fall time
TA Operating Temperature Range
Min Typ Max Unit
1.65 -
5.5 V
GND
-
5.5 V
GND
-
5.5 V
- - 10 ns/V
40 - +85 °C
2015-07-0032
PT0522-4 08/18/15
2


Part Number PI4MSD5V9540B
Description 2 Channel I2C bus Multiplexer
Maker Pericom Semiconductor
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PI4MSD5V9540B Datasheet PDF






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