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TCA7408 Datasheet Low-voltage 8-bit I2c And Smbus I/o Expander

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & munity TCA7408 SCPS235D – NOVEMBER 2011 – REVISED APRIL 2018 TCA7408 Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output, RESET.

General Description

TCA7408 is an 8-bit I/O expander for the two-line bidirectional bus (I2C) and is designed to provide general-purpose remote I/O expansion through the I2C interface.

The major benefit of this device is its wide VCC range.

It can operate from 1.65 V to 3.6 V on the GPIO-port side and 1.65 V to 5.5 V on the SDA/SCL side.

Key Features

  • 1 Operating Power-Supply Voltage Range of 1.65 to 3.6 V.
  • Allows Bidirectional Voltage-Level Translation and GPIO Expansion Between 1.8-V, 2.5-V, 3.3-V GPIO Port and.
  • 1.8-V SCL/SDA.
  • 2.5-V SCL/SDA.
  • 3.3-V SCL/SDA.
  • 5-V SCL/SDA.
  • Standby Current Consumption of < 2 µA at 1.8 V.
  • Active Current Consumption of:.
  • < 2 µA at 1.8-V 100-kHz Clock.
  • < 5 µA at 1.8-V 400-kHz Clock.
  • 100-kHz, 400-kHz Fast Mode.

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TCA7408 Distributor