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)

I²C General-Purpose I/O (GPIO)

Maximize the system design reuse with I²C GPIO Expanders

Our General-Purpose I/O (GPIO) expanders provide an elegant solution when additional I/Os are needed while keeping interconnections to a minimum. Housed in TSSOP24 and HWQFN24, these GPIO expanders are equipped with multiple features including Interrupt, Hardware RESET, Internal pull-up resistors, and configurable pull-ups. These GPIO expanders also offer benefits such as extremely low static power consumptions and reduce PCB design complexity through trace reduction and routing simplification, thereby reducing BOM cost.

Key features and benefits

  • GPIO pins configurable as input or output for application flexibility
  • Supports interrupts to signal microcontroller on input changes for event-driven responses 
  • Designed for minimal power usage in battery-powered applications 
  • Supports broad voltage compatibility (1.65 - 5.5 V) with various microcontrollers adn supplies
  • Small footprint: available in compact surface-mount packages to reduce system size

Key applications

  • Servers and routers
  • TV and hardware control monitors
  • Gaming consoles and drones
  • Battery powered applications
  • Automotive applications (ADAS, VCU, DCU and BCM)
  • Surveillance cameras
  • Telecomm equipment

Evaluation boards

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Products

Type number Description Status Quick access
NCA9535 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers ACT
NCA9535BY Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9535BY-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9535PW Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9535PW-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9535-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers ACT
NCA9535BY-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9535PW-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
NCA9539PW-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers ACT
NCA9539BY-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Production
NCA9539PW-Q100 Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Production
NCA9555-Q100 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers ACT
NCA9555BY-Q100 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production
NCA9555PW-Q100 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production
NCA6416BY Development
NCA6416BY-Q100 Development
NCA6416PW Development
NCA6416PW-Q100 Development
NCA9539BY Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Production
NCA9539PW Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Production
NCA9555BY Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production
NCA9555PW Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output and configuration registers Production
NCA9595PW Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output, configuration registers and programmable pull-up resistors Production
NCA9595PW-Q100 Low-voltage 16-bit I²C and SMBus I/O expander with interrupt output, configuration registers and programmable pull-up resistors Production
PCA9535PW Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output and configuration registers Production
PCA9539PW Low-voltage 16-bit I²C and SMBus low-power I/O expander with interrupt output, reset pin and configuration registers Production
PCA9555PW Low-voltage 16-bit I²C-bus I/O port with interrupt and weak pull-up Production
Visit our documentation center for all documentation

Leaflet (1)
File name Title Type Date
Leaflet_SOT8065_Minilogic.pdf Leaflet_SOT8065 Minilogic Leaflet 2024-11-15

Outline 3d (1)
File name Title Type Date
sot355-1_3d.png plastic, thin shrink small outline package; 24 leads; 0.65 mm pitch; 7.8 mm x 4.4 mm x 1.1 mm body Outline 3d 2021-06-10

Software (2)
File name Title Type Date
NCA95XX_EVB_Software.zip NCA95XX EVB GUI Software 2023-03-12
NCA95XX_Arduino_Sketches.zip NCA95XX Arduino™ Sketch Examples Software 2023-03-12

User manual (2)
File name Title Type Date
UM90016.pdf NCA95xx GPIO expander EVB (Arduino™ shield compatible) User manual 2024-02-23
UM90017.pdf NCA95XX Evaluation Board: Quick-Start Guide User manual 2023-01-18

Please contact us if you have any questions. If you are in need of design support, please fill in the technical support form, we will get back to you shortly.

Please visit our community forum or contact us for further support.


Cross reference