PI4MSD5V9540B

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 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 that 1.2V, 1.8V, 2.5V or 3.3V parts can communicate with 5V parts without any additional protection. External pull -up resistors can pull the bus up to the desired voltage level for this channel. All I/O pins are 5V tolerant.

Feature(s)

• 1-of-2 bidirectional translating multiplexer
• I2C -bus interface logic
• Operating power supply voltage: 1.65V to 5.5V
• Allows voltage level translation between 1.2V, 1.8V, 2.5V, 3.3V and 5V buses
• Low standby current
• Low Ron switches
• Channel selection via I2C bus
• Power-up with all multiplexer channels deselected
• Capacitanceisolation when channel disabled
• No glitch on power-up
• Supports hot insertion
• 5V tolerant inputs
• 0Hz to 400kHz clock frequency
• ESD protection exceeds 8000V HBM per JESD22 - A114, and 1000V CDM per JESD22 -C101
• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100mA
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC -Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/
• Packages (Pb-free and Green):
  • 8 pin, MSOP (U)
  • 8 pin, 2x3, WDFN (ZE)