Remote 16-Bit I/O Expander for I²C-Bus with Interrupt

Block Diagram

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PCA8575 Block Diagram

PCA8575 Block Diagram

Block diagram: PCA8575BQ, PCA8575BS, PCA8575D, PCA8575DB, PCA8575DK, PCA8575PW


System Features

  • 400 kHz I2C-bus interface
  • 2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
  • 16-bit remote I/O pins that default to inputs at power-up
  • Latched outputs with 25 mA sink capability for directly driving LEDs
  • Total package sink capability of 400 mA
  • Active LOW open-drain interrupt output
  • 8 programmable target addresses using 3 address pins
  • Readable device ID (manufacturer, device type, and revision)
  • Low standby current (10 uA max.)
  • -40 Cel to +85 Cel operation
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
  • Packages offered: SO24, SSOP24 (QSOP24), TSSOP24, HVQFN24, DHVQFN24

Part numbers include: PCA8575BS, PCA8575D, PCA8575DB, PCA8575PW.


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