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TCA9534 Datasheet Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander

Manufacturer: Texas Instruments

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General Description

The TCA9534 is a 16-pin device that provides 8 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol.

The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V, which allows for use with a wide range of devices.

The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies.

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community TCA9534 SCPS197D – SEPTEMBER 2014 – REVISED OCTOBER 2017 TCA9534 Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander with Interrupt.

Key Features

  • 1 ESD Protection Exceeds JESD 22.
  • 2000-V Human-Body Model (A114-A).
  • 1000-V Charged-Device Model (C101).
  • Low Standby Current Consumption.
  • I2C to Parallel Port Expander.
  • Open-Drain Active-Low Interrupt Output.
  • Operating Power-Supply Voltage Range of 1.65 V to 5.5 V.
  • 5-V Tolerant I/O Ports.
  • 400-kHz Fast I2C Bus.
  • Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus.
  • Input and Output C.

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