18 V Tolerant SPI 16-Bit GPI with Maskable INT

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Block Diagram

PCA9703 Block Diagram

PCA9703 Block Diagram


Key Features

  • 16 general purpose input ports
  • 18 V tolerant input ports with 100 kΩ external series resistor
  • Input LOW threshold 0.55 x VDD with minimum of 2.5 V at VDD = 4.5 V
  • Open-drain interrupt output
  • Interrupt enable pin (INT_EN) disables GPI pins and interrupt output
  • Interrupt-masking feature allows no interrupt generation from selected inputs
  • VDD range: 4.5 V to 5.5 V
  • IDD is very low 2.5 µA maximum
  • SPI serial interface with speeds up to 5 MHz
  • SPI supports daisy-chain connection for large switch numbers
  • AEC-Q100 compliance available
  • 18 V tolerant SPI 16-bit GPI with maskable INT
  • ESD protection exceeds 5 kV HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Operating temperature range: -40 °C to +125 °C
  • Offered in TSSOP24 and HWQFN24 packages

Part numbers include: PCA9703PW.


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