8-Bit I²C-Bus and SMBus I/O Port with Interrupt

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Block Diagram

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PCA9554_9554A Block Diagram



Key Features

  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 5 V tolerant I/Os
  • Polarity Inversion register
  • Active LOW interrupt output
  • Low standby current
  • Noise filter on SCL/SDA inputs
  • No glitch on power-up
  • Internal power-on reset
  • 8 I/O pins which default to 8 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
  • AEC-Q100 compliance available
  • Packages offered: DIP16, SO16, SSOP16, SSOP20, TSSOP16, HVQFN16 (2 versions: 4 mm x 4 mm x 0.85 mm and 3 mm x 3 mm x 0.85 mm) and bare die

Part numbers include: PCA9554ABS, PCA9554ABS3, PCA9554AD, PCA9554ADB, PCA9554APW, PCA9554ATS, PCA9554BS, PCA9554BS3, PCA9554D, PCA9554DB, PCA9554PW, PCA9554TS.


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