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PI4MSD5V9540B Datasheet 2-channel I2c Bus Switch

Manufacturer: Diodes Incorporated

Overview: PI4MSD5V9540B 2 Channel I2C bus Multiplexer.

General 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.

Key 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, 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.

PI4MSD5V9540B Distributor