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PCA95380 - Remote 8-Bit I2C AND SMBus Low-power I/O Expander

Download the PCA95380 datasheet PDF. This datasheet also covers the PCA9538 variant, as both devices belong to the same remote 8-bit i2c and smbus low-power i/o expander family and are provided as variant models within a single manufacturer datasheet.

General Description

This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation.

It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].

Key Features

  • 1 Low Standby Current Consumption of 1 μA Max.
  • I2C to Parallel Port Expander.
  • Open-Drain Active-Low Interrupt Output.
  • Active-Low Reset Input.
  • Operating Power-Supply Voltage Range of 2.3 V to 5.5 V.
  • 5-V Tolerant I/O Ports.
  • 400-kHz Fast I2C Bus.
  • Two Hardware Address Pins Allow up to Four Devices on the I2C/SMBus.
  • Input/Output Configuration Register.
  • Polarity Inversion Register.
  • Power-Up With All Chan.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PCA9538-etcTI.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9538 SCPS126F – SEPTEMBER 2006 – REVISED JUNE 2014 PCA9538 Remote 8-Bit I2C AND SMBus Low-power I/O Expander With Interrupt Output, Reset, and Configuration Registers 1 Features •1 Low Standby Current Consumption of 1 μA Max • I2C to Parallel Port Expander • Open-Drain Active-Low Interrupt Output • Active-Low Reset Input • Operating Power-Supply Voltage Range of 2.3 V to 5.