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IO-EXPANDER-EVM

IO-EXPANDER-EVM: I2C and SMBus IO Expander Evaluation Module

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IO-EXPANDER-EVM

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Overview

The IO expander evaluation module (EVM) lets you evaluate TI's portfolio of SMBus and I2C IO expander line devices. The TCA6424A and TCA9539 come installed on the board. The 24-pin TSSOP footprint also supports TCA6408A, TCA6416A, TCA9534, TCA9534A, TCA9535, TCA9538, TCA9554, TCA9554A and TCA9555.

Features
  • IO expander evaluation through LEDs or broken out to headers
  • Input evaluation with on board pushbutton switches
  • Example code including necessary functions for each IO expander
I2C general-purpose I/Os (GPIOs)
TCA6408A — 8-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA6408A-Q1 — Automotive 8-bit translating I2C/SMBus I/O expander with interrupt, reset & config registers TCA6416A — 16-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA6424A — 24-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9534 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers TCA9534A — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, & config registers TCA9535 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers TCA9538 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9539 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9539-Q1 — Automotive 16-bit 1.65- to 3.6-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9554 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers TCA9554A — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers TCA9555 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers TCAL6408 — 8-bit translating I²C-bus/SMBus I/O expander with interrupt, reset, and agile I/O TCAL6416 — 16-bit translating I²C-bus/SMBus I/O expander with interrupt, reset, and agile I/O configuration TCAL9538 — Low-voltage 8-bit I²C-bus/SMBus I/O expander with interrupt, reset and agile I/O configuration TCAL9539 — 16-bit low-voltage I²C-bus and SMBus I/O expander with interrupt, reset and agile I/O configuration TCAL9539-Q1 — Automotive 16-bit low voltage I²C/SMBus I/O expander w/interrupt, reset and agile I/O configuration
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Evaluation board

IO-EXPANDER-EVM — IO-EXPANDER-EVM: I2C and SMBus IO Expander Evaluation Module

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Firmware

SLVC564 — I/O Expander Software and Firmware Package

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SLVC564 — I/O Expander Software and Firmware Package

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Latest version
Version: 01.00.00.0A
Release date: 24 Jul 2014
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download I/O Expander Software and Firmware Package (zip)  — 2137 K

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Products
I2C general-purpose I/Os (GPIOs)
TCA6408A — 8-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA6408A-Q1 — Automotive 8-bit translating I2C/SMBus I/O expander with interrupt, reset & config registers TCA6416A — 16-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA6424A — 24-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9534 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers TCA9534A — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, & config registers TCA9535 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers TCA9538 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9539 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers TCA9554 — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers TCA9554A — 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers TCA9555 — 16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers
Hardware development
Evaluation board
IO-EXPANDER-EVM — IO-EXPANDER-EVM: I2C and SMBus IO Expander Evaluation Module

Release Infomation

The design resource accessed as www.ti.com/lit/zip/slvc564 or www.ti.com/lit/xx/slvc564a/slvc564a.zip has been migrated to a new user experience at www.ti.com/tool/download/SLVC564. Please update any bookmarks accordingly.
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
Data sheet TCA6424A Low-Voltage 24-Bit I2C and SMBus I/O Expander With Interrupt Output, Reset, and Configuration Registers datasheet (Rev. D) PDF | HTML 30 Jan 2023
Certificate IO-EXPANDER-EVM EU Declaration of Conformity (DoC) 02 Jan 2019
Data sheet TCA9539 Low Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset Pin, and Configuration Registers datasheet (Rev. C) PDF | HTML 26 Apr 2016
EVM User's guide I/O Expander EVM User's Guide (Rev. A) 25 Jul 2014

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