Eight-Channel Ultra-Low Voltage, Fm+ I²C-Bus Switch with Reset

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Block Diagram


PCA9848 Block Diagram


Key Features

  • Ultra-low voltage operation, down to 0.8 V to interface with next-generation CPUs
  • 1-of-8 bidirectional translating switch
  • Fm+ I2C-bus interface logic; compatible with SMBus standards
  • Active LOW reset input
  • 2 address pins allowing up to 16 devices on the I2C-bus
  • Channel selection via I2C-bus
  • Power-up with all switch channels deselected
  • Low Ron switches
  • Allows voltage level translation between 0.8 V, 1.8 V, 2.5 V and 3.3 V buses
  • Reset via I2C-bus software command
  • I2C Device ID function
  • No glitch on power-up
  • Supports hot insertion since all channels are de-selected at power-on
  • Low standby current
  • 3.6 V tolerant inputs
  • 0 Hz to 1 MHz clock frequency
  • ESD protection exceeds 6000 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
  • Two packages offered: TSSOP24 and HVQFN24


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