Nexperia

I²C General Purpose I/O (GPIO)

Nexperia's low-voltage 16-bit I²C and SMBus I/O expander offers interrupt output and configuration registers

Image of Nexperia's NCA9555 Series GPIO ExpanderNexperia's NCA95xx family of GPIO expanders provides an elegant solution when additional I/Os are needed while keeping the interconnections to a minimum. Features include interrupt, hardware reset, internal pull-up resistors, and configurable pull-ups. These GPIO expanders' benefits include extremely low static power consumptions and reduced PCB design complexity through trace reduction and routing simplification, thereby reducing the BOM cost.

Features
  • I²C-bus-to-parallel port expander
  • Operating power supply voltage range: 1.65 V to 5.5 V
  • Low standby current consumption: 2.5 µA (maximum)
  • Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs [VHYS = 0.10 × VCC (typical)] with noise filter on SCL and SDA inputs
  • 5 V tolerant I/Os
  • 16 I/O pins which default to 16 inputs
  • Open-drain active LOW interrupt output (INT)
  • 400 kHz fast-mode I²C bus
  • Internal power-on reset
  • Power-up with all channels configured as inputs with weak pull-up resistors
  • No glitch on power-up
  • Latched outputs with 25 mA drive maximum capability for directly driving LEDs
  • Latch-up performance exceeds 100 mA per JESD78, Class II
  • ESD protection:
    • HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2,000 V
    • CDM ANSI/ESDA/JEDEC JS-002 Class C3 exceeds 1,000 V
  • Specified from -40°C to +85°C
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

NCA9555 Series GPIO Expanders

ImageManufacturer Part NumberAvailable QuantityPriceView Details
NCA9555PW-Q100JNCA9555PW-Q100J0 - Immediate$1.39View Details
NCA9555PWJNCA9555PWJ4 - Immediate$1.23View Details
NCA9555BYHPNCA9555BYHP1839 - Immediate$1.34View Details
NCA9555BY-Q100HPNCA9555BY-Q100HP5505 - Immediate$1.51View Details
NCA9539PWJNCA9539PWJ1850 - Immediate$1.29View Details
NCA9539PW-Q100JNCA9539PW-Q100J0 - Immediate$1.40View Details
NCA9535PWJNCA9535PWJ2244 - Immediate$1.23View Details
NCA9535PW-Q100JNCA9535PW-Q100J0 - Immediate$1.23View Details
Updated: 2023-05-12
Published: 2023-04-07

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NCA/PCA Series Expanders Nexperia NCA/PCA series expanders offer a range of low-voltage 16-bit I²C and SMBus I/O expanders for additional GPIO capabilities for various applications.