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TCA6416A - Low-Voltage 16-Bit I2C and SMBus I/O Expander

General Description

The TCA6416A is a 24-pin device that provides 16bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.

Key Features

  • 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 3 μA.
  • 5-V Tolerant I/O ports.
  • 400-kHz Fast I2C bus.
  • Hardware address pin allows two TCA6416A devices on the same I2C/SMBus bus.
  • Active-low reset input ( RESET).
  • Open-drain.

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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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TCA6416A SCPS194F – MAY 2009 – REVISED JANUARY 2023 TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander With Voltage Translation, Interrupt Output, Reset Input, and Configuration Registers 1 Features • 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.