MAX7301

PRODUCTION

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

Data Sheet (Rev. 10) Product Selection Table
Viewing:

Overview

  • Industry-Standard 4-Wire Interface Simplifies Expansion of I/O Ports to Up to 28 I/Os Independent of Microprocessor Architecture
    • High-Speed, 26MHz, SPI-/QSPI™-/MICROWIRE®-Compatible Serial Interface
    • 2.25V to 5.5V Operation
    • 20 or 28 I/O Ports Configurable as Push-Pull Logic Output, Schmitt Logic Input or Schmitt Logic Input with Internal Pullup
    • Logic Transition Detection for Seven I/O Ports
  • Low Power Consumption Reduces Power-Supply Requirements
    • 11µA (max) Shutdown Current

The MAX7301 compact, serial-interfaced I/O expander (or general-purpose I/O (GPIO) peripheral) provides microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input or logic output.

Each port can be configured either as a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. The MAX7301 is controlled through an SPI-compatible 4-wire serial interface.

The MAX7301AAX and MAX7301ATL have 28 ports and are available in 36-pin SSOP and 40-pin TQFN packages, respectively. The MAX7301AAI has 20 ports and is available in a 28-pin SSOP package.

For a 2-wire I²C-interfaced version, refer to the MAX7300 data sheet.

For a pin-compatible port expander with additional 24mA constant-current LED drive capability, refer to the MAX6957 data sheet.

Applications

  • Gaming Machines
  • Industrial Controllers
  • System Monitoring
  • White Goods
MAX7301
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
MAX7301: Functional Diagram
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 3

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
I/O Expanders 11
MAX7300
PRODUCTION 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
MAX1608
PRODUCTION Octal, SMBus-to-Parallel I/O Expanders
MAX1609
PRODUCTION Octal, SMBus-to-Parallel I/O Expanders
MAX7311
PRODUCTION 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7312
PRODUCTION 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
MAX7313
PRODUCTION 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7315
PRODUCTION 8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7314
PRODUCTION 18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7316
10-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
MAX7317
PRODUCTION 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection
MAX7318
PRODUCTION 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection
LED Drivers 5
MAX7310
PRODUCTION 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset
MAX6965
PRODUCTION 9-Output LED Driver with Intensity Control and Hot-Insertion Protection
MAX6956
PRODUCTION 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander
MAX6957
PRODUCTION 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
MAX6964
PRODUCTION 17-Output LED Driver/GPO with Intensity Control and Hot-Insertion Protection
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Tools & Simulations

IBIS Model 1

Reference Designs

Figure 1. CN0585 Simplified Block Diagram
Figure 1. CN0585 Simplified Block Diagram
EVAL-CN0585-FMCZ Angle View
EVAL-CN0585-FMCZ Bottom View
EVAL-CN0585-FMCZ Top View
CN0585 Circuits from the lab

Quad Channel, Low Latency, Data Acquisition and Signal Generation Module

View Detailed Reference Design

Features and Benefits

  • 4 Analog Input Channels with Configurable Voltage Ranges
  • 4 Analog Output Channels with Configurable Voltage Ranges
  • 200 ns Latency between ADC Measurement and DAC Settling
  • Analog Front End Interface Connector
  • Modeling and Simulation Compatible with MATLAB and Python
  • FMC Connector Interface to FPGA

Part Used

Resources

Design & Integration Tools

Videos

  • lazy blur
    VIDEO · 2023-04-03 03:08
    Personalized Low Latency Hardware in the Loop (HiL) Solution
  • lazy blur
    VIDEO · 2022-10-31 03:03
    Low Latency Test and Measurement Kit – Hardware in the Loop
CN0585
Quad Channel, Low Latency, Data Acquisition and Signal Generation Module
Figure 1. CN0585 Simplified Block Diagram
EVAL-CN0585-FMCZ Angle View
EVAL-CN0585-FMCZ Bottom View
EVAL-CN0585-FMCZ Top View

Latest Discussions

34 Weeks Ago
Error found in MAX7301 Datasheet for Multi-pin access
35 Weeks Ago
Error in datasheet for read/writes to multi-pin registers
1 Years Ago
MAX7301　digichain
View related discussion on EngineerZone®

Recently Viewed