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PI4MSD5V9544A

Pericom Semiconductor
Part Number PI4MSD5V9544A
Manufacturer Pericom Semiconductor
Description 4 Channel I2C bus Multiplexer
Published Aug 29, 2016
Detailed Description PI4MSD5V9544A ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||...
Datasheet PDF File PI4MSD5V9544A PDF File

PI4MSD5V9544A
PI4MSD5V9544A

Overview
PI4MSD5V9544A ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 4 Channel I2C bus Multiplexer with interrupt logic Features  1-of-4 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, 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- A114, and 1000 V CDM per JESD22-C101  Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA  Packages offered: TSSOP-20L Only one SCx/SDx channel is selected at a time, determined by the contents of the programmable control register.
Four interrupt inputs, INT0 to INT3, one for each of the SCx/SDx downstream pairs, are provided.
One interrupt output, INT, which acts as an AND of the four interrupt inputs, is provided.
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 which will be passed by the PI4MSD5V9544A.
This allows the use of different bus voltages on each SCx/SDx pair, so that 1.
2V,1.
8 V, 2.
5 V or 3.
3 V parts can communicate with 5 V parts without any additional protection.
External pull-up resistors pull the bus up to the desired voltage level for each channel.
All I/O pins are 5 V tolerant.
Pin Description Description Th...


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