PI4IOE5V9520 (Obsolete)

Description

The PI4IOE5V9520 provides 2 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus applications.  It includes the 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 needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
The PI4IOE5V9520 consists of a 2-bit quasi-bidirectional port and an I2C-bus interface. The PI4IOE5V9520 open-drain interrupt output (INT) is activated by any updated of the port inputs and is used to indicate the system master that the port inputs has changed. The power-on reset sets the registers to their default values and initializes the device state machine.  The Reset pin (Reset) causes the same reset/initialization to occur without de-powering the device

Features

• Operation power supply voltage from 2.3V to 5.5V
• 2-bit I2C-bus GPIO with interrupt and reset
• 5V tolerant I/Os
• Active Low interrupt output
• Active Low reset input
• Low current consumption
• 0Hz to 1MHz clock frequency
• Noise filter on SCL/SDA inputs
• Power-on reset, software reset
• ESD protection (4KV HBM and 1KV CDM)
• Package offered: UQFN 1.6x1.6-8