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




PCA9848 Block Diagram


Octal I2C Bidirectional Switch

  • Multiple target devices can be selected or one at a time
  • Enables multiple devices with same I2C bus address on same bus
  • Isolates heavily loaded I2C into separate bus segments
  • Reset by pin or I2C command
  • Two address pins allow up to 16 devices on I2C bus
  • Clock frequency range from 0 Hz to 1 MHz

Integrated Translation

  • 1:8 bidirectional voltage translation
  • VDD1 (host) range from 1.08 V to 3.6 V
  • VDD2 (target) range from 1.65 V to 3.6 V

Robustness Feature Set

  • Supports hot insertion due to all channels de-selected at power-on
  • Low RON enables lower conduction losses, reducing heat generation
  • Tolerant inputs up to 3.6 V
  • No glitch on power up
  • 6 kV HBM ESD protection per JESD22-A114
  • 1 kV CDM protection per JESD22-C101
  • Exceeds 100 mA latch-up per JESD78

Package Offering

  • HVQFN24 rated up to +125 C
  • TSSOP24 rated up to +85 C

部品番号: PCA9848BS, PCA9848PW.


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