Bipolar transistors

Diodes

ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

NCA9555 GPIO expander evaluation board

NEVB – NCA9555, the NCA95xx evaluation board, is an Arduino™ compatible shield form factor PCB​
designed for the Nexperia I²C controlled GPIO expander family. The board provides convenient test points for GND, I²C-Bus signals SCL and SDA as well as an interrupt open drain output. The EVB can be used for the GPIO expander derivatives NCA9555, NCA9535, NCA9539 and NCA9595.

NCA9555 GPIO expander evaluation board

Key features & benefits

  • Input voltage = 1.6 V to 5.5 V​
  • I²C to parallel port expansion​
  • Number of GPIOs = 2 ports with 8 bits​
  • Current drive capability = ± 25 mA​
  • I²C interface, Fast-Mode 400 kHz​
  • Open-drain active-low interrupt output​
  • Configurable slave address via 3 selection pins (2 pins for NCA9539)​
  • Low-active reset input (NCA9539)

Products on the board (1)

Type number Description Status Quick access
NCA9555BY Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production

Latest videos

Unboxing the NCA9555 EVB I2C GPIO Expander

Products on the board (1)

Type number Description Status Quick access
NCA9555BY Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production

Documentation (5)

File name Title Type Date
Nexperia_document_leaflet_I2C_GPIO_expanders I2C GPIO Expanders 2023 Leaflet 2023-04-26
NCA95XX_Arduino_Sketches NCA95XX Arduino™ Sketch Examples Software 2023-03-12
NCA95XX_EVB_Software NCA95XX EVB GUI Software 2023-03-12
UM90017 NCA95XX Evaluation Board: Quick-Start Guide User manual 2023-01-18
UM90016 NCA95xx GPIO expander EVB (Arduino™ shield compatible) User manual 2024-02-23

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