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TCA6408A-Q1 Datasheet Low-voltage 8-bit I2c And Smbus I/o Expander

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & munity TCA6408A-Q1 SCPS234 – SEPTEMBER 2016 TCA6408A-Q1 Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output.

General Description

The TCA6408A-Q1 is a 16-pin device that provides 8bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.

This device can operate with a power supply voltage ranging from 1.65 V to 3.6 V on both the I2C bus side (VCCI) and on the P-port side (VCCP).

This allows the TCA6408A-Q1 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power.

Key Features

  • 1 I2C to Parallel Port Expander.
  • Operating Power-Supply Voltage Range of 1.65 V to 3.6 V.
  • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.8-, 2.5-, and 3.3-V I2C Bus and P-Ports.
  • Low Standby Current Consumption.
  • 400-kHz Fast I2C Bus.
  • Hardware Address Pin Allows Two TCA6408A-Q1 Devices on the Same I2C/SMBus Bus.
  • Active-Low Reset (RESET) Input.
  • Open-Drain Active-Low Interrupt (INT) Output.

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TCA6408A-Q1 Distributor