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TCA6408A - Low-Voltage 8-Bit I2C and SMBus I/O Expander

General Description

The TCA6408A is a 16-pin device that provides 8-bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.

Key Features

  • 1 I2C to Parallel Port Expander.
  • Operating Power-Supply Voltage Range of 1.65 V to 5.5 V.
  • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.8-V, 2.5-V, 3.3-V, and 5-V I2C Bus and P-Ports.
  • Low Standby Current Consumption of 1 μA.
  • 5-V Tolerant I/O Ports.
  • 400-kHz Fast I2C Bus.
  • Hardware Address Pin Allows Two TCA6408A Devices on the Same I2C/SMBus Bus.
  • Active-Low Reset (RESET) Input.
  • Open-Drain.

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Other Datasheets by Texas Instruments

Part Number Description
TCA6408A-Q1 Low-Voltage 8-Bit I2C and SMBus I/O Expander
TCA6408 LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER
TCA6416 Low-Voltage 16-Bit I2C and SMBus I/O Expander
TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander
TCA6418E I2C CONTROLLED 18 CHANNEL GPIO EXPANDER

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.

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design TCA6408A SCPS192D – APRIL 2009 – REVISED JULY 2015 TCA6408A Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Configuration Registers 1 Features •1 I2C to Parallel Port Expander • Operating Power-Supply Voltage Range of 1.65 V to 5.5 V • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.8-V, 2.5-V, 3.