NCA9555B Datasheet

Features and Benefits

 I2C to Parallel Port Expander
 Operating power supply voltage range of 1.65 V to 5.5 V
 Low standby current
 Open-drain active-low interrupt output
 5.5 V tolerant, 16 I/O ports which default to input mode
 Compatible with most microcontrollers
 Up to 400 kHz clock frequency
 Noise filter o.