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PCF8574N Datasheet Remote 8-bit I/o Expander

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCF8574 SCPS068J – JULY 2001 – REVISED MARCH 2015 PCF8574 Remote 8-Bit I/O Expander for I2C Bus.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation.

The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].

The device

Key Features

  • 1 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 2.

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