Two-Channel I2C-Bus Multiplexer

PCA9540B

Product Details

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Block Diagram

PCA9540B

PCA9540B Block Diagram

Features

Key Features

  • 1-of-2 bidirectional translating multiplexer
  • I2C-bus interface logic; compatible with SMBus standards
  • Channel selection via I2C-bus
  • Power-up with all multiplexer channels deselected
  • Low Ron switches
  • Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 5 V tolerant inputs
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 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: SO8, TSSOP8, XSON8

Part numbers include: PCA9540BD, PCA9540BDP, PCA9540BGD.

Documentation

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Design Resources

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Design Files

5 design files

Hardware

2 hardware offerings

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