• Part: PI4MSD5V9543B
  • Description: 2 Channel I2C bus switch
  • Manufacturer: Pericom Semiconductor
  • Size: 535.24 KB
PI4MSD5V9543B Datasheet (PDF) Download
Pericom Semiconductor
PI4MSD5V9543B

Description

1 A0 Input address input 0 2 A1 Input address input 1 TSSOP14 SOP14 Description The PI4MSD5V9543B is a bidirectional translating switch, controlled by the I2C bus.

Key Features

  • Two interrupt inputs, INT0 and INT1, one for each of the downstream pairs, are provided
  • One interrupt output, INT, which acts as an AND of the two interrupt inputs, is provided
  • An active LOW reset input allows the PI4MSD5V9543B to recover from a situation where one of the downstream buses is stuck in a LOW state
  • External pull-up resistors pull the bus up to the desired voltage level for each channel
  • All I/O pins are 5 V tolerant
  • The PI4MSD5V9543A and PI4MSD5V9543B are identical except for the fixed portion of the slave address