Datasheet Diodes PI4IOE5V9554

PI4IOE5V9554/9554A
2 8-bit I C-Bus and SMBus I/O Port with Interrupt Features
Description  Operation Power Supply Voltage from 2.3V to 5.5 V The PI4IOE5V9554 and PI4IOE5V9554A provide 8 bits of
general purpose parallel input/output (GPIO) expansion for
I2C-bus/SMBus applications. The device includes features
such as higher driving capability, 5V tolerance, lower power
supply, individual I/O configuration, and smaller packaging. It
provides a simple solution when additional I/O is required for
ACPI power switches, sensors, push buttons, LEDs, fans, etc.  8-bit I2C-bus GPIO with Interrupt and Reset
 5V Tolerant I/Os
 Polarity Inversion Register
 Active LOW Interrupt Output
 Low Current Consumption
 0Hz to 400KHz Clock Frequency
 Noise Filter on SCL/SDA Inputs The PI4IOE5V9554/PI4IOE5V9554A consists of an 8-bit
register to configure the I/Os as either inputs or outputs and
an 8-bit polarity register to change the polarity of the input
port register data. The data for each input or output is kept in
the corresponding input port or output port register. All
registers can be read by the system master.  Power-on Reset
 ESD Protection (4KV HBM and 1KV CDM)
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3) …