PCF8574 SMD I2C or Expander IC

Description

GENERAL DESCRIPTION

The devices consist of eight quasi-bidirectional ports. So in this 100 kHz I2C-bus interface, three hardware address inputs and interrupt output operating between 2.5 V and 6 V. The quasi-bidirectional port can be independently assigned as an input to monitor interrupt status or keypads, or as an output to activate indicator devices such as LEDs. And the system master can read from the input port or write to the output port through a single register

FEATURES

•  Low standby-current consumption of 10 μA max
• I2C to parallel-port expander
• Open-drain interrupt output
• Compatible with most microcontrollers
• Latched outputs with high-current drive capability for directly driving LEDs
• Latch-up performance exceeds 100 mA Per JESD 78, Class II

APPLICATIONS

• Telecom shelters: filter units Servers
• Routers (telecom switching equipment)
• Personal computers and Personal electronics
• Industrial automation
• And  Products with GPIO-Limited Processors