ENGLISH • 简体中文 • 日本語 • 한국어  

    Login | Register 


   
 
Enter keywords or part number    


What's New Products Solutions Design AppNotes Support Sales About Us Members

Maxim > Products > [Interface and Interconnect]  [Microcontrollers] 
MAX7311
2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection

2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and hot-Insertion Protection for SMBus-Compatible and I²C-Compatible Applications


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 308kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX7311 2-wire-interfaced expander provides 16-bit parallel input/output (I/O) port expansion for SMBus™ and I²C applications. The MAX7311 consists of input port registers, output port registers, polarity inversion registers, configuration registers, a bus timeout register, and an I²C-compatible serial interface logic compatible with SMBus. The system master can invert the MAX7311 input data by writing to the active-high polarity inversion register. The system master can enable or disable bus timeout by writing to the bus timeout register.

Any of the 16 I/O ports can be configured as an input or output. A power-on reset (POR) initializes the 16 I/Os as inputs. Three address select pins configure one of 64 slave ID addresses.

The MAX7311 supports hot insertion. All port pins, the active-low INT output, SDA, SCL and the slave address inputs AD0-2 remain high impedance in power down (V+ = 0V) with up to 6V asserted upon them.

The MAX7311 is available in 24-pin SO, SSOP, TSSOP, and thin QFN packages and is specified over the -40°C to +125°C automotive temperature range.

For applications requiring I/Os without pullup resistors, refer to the MAX7312 data sheet.

An evaluation kit is available:  MAX7311EVKIT  

Key Features   Applications/Uses
  • 400kbps I²C-Compatible Serial Interface
  • 2V to 5.5V Operation
  • 5V Overvoltage Tolerant I/Os
  • Supports Hot Insertion
  • 16 I/O Pins that Default to Inputs on Power-Up
  • 100kΩ Pullup on Each I/O
  • Open-Drain Interrupt Output (active-low INT)
  • Bus Timeout for Lock-Up-Free Operation
  • Noise Filter on SCL/SDA Inputs
  • 64 Slave ID Addresses Available
  • Low Standby Current (2.9µA typ)
  • Polarity Inversion
  • 4mm x 4mm, 0.8mm Thin QFN Package
  • -40°C to +125°C Operation

 
  		• Industrial Control
  		• Instrumentation and Test Measurement
  		• Medical Equipment
  		• PLCs
  		• RAID Systems
  		• Servers

    Key Specifications:  I/O Port Expanders
    Part Number Features Interface I/O Interr.Out Over Voltage Protect. Drive Current
    (mA)    		 VSUPPLY
    (V)    		 VSUPPLY
    (V)    		 Price
    min max See Notes
    MAX7311 
    64 Slave IDs
    Port pullups
    Transition Detection
    		 Serial 2-Wire 400kbit 16 Yes 5.5V 40 2 5.5 $2.10 @1k
    See All I/O Port Expanders (26)

    Diagram
    MAX7311: Block Diagram
    Block Diagram

    Application Notes
  		• Application Note 2199: Driving LEDs with Push-Pull Port Expander Outputs - MAX7311
  		• Application Note 4418: I²C Interface Connects Compact Flash Card to Microcontroller - MAX7311

    Evaluation Kits
  		• MAX7311EVKIT

    Design Guides
  		• Interface (PDF)
  		• High-Speed Interconnect (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-12 of 12

    MAX7311 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7311AWG+  
    		Active SOIC(W);24 pin;166 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0182 (PDF)
    Use pkgcode/variation: W24+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7311AWG+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7311AAG  
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24-2*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7311AAG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7311AAG+  
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24+2*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7311AAG+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7311ATG+T    
    		Active TQFN;24 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0022 (PDF)
    Use pkgcode/variation: T2444+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7311ATG+  
    		Active TQFN;24 pin;17 mm²
    Outline Drawing: 21-0139 (PDF)
    Land Pattern: 90-0022 (PDF)
    Use pkgcode/variation: T2444+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7311AUG  
    		Active TSSOP;24 pin;52 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0118 (PDF)
    Use pkgcode/variation: U24-1*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7311AUG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7311AUG+  
    		Active TSSOP;24 pin;52 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0118 (PDF)
    Use pkgcode/variation: U24+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7311AUG+T    
    		Active TSSOP;24 pin;52 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0118 (PDF)
    Use pkgcode/variation: U24+1*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• New Product Press Release 2003-03-04 

    Related Products
    MAX6957 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
    MAX7301 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
    MAX7300 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port I/O Expander
    MAX6956 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander
    MAX7310 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset
    MAX6965 9-Output LED Driver with Intensity Control and Hot-Insertion Protection
    MAX7312 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
    MAX7313 16-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
    MAX7315 8-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
    MAX7316 10-Port I/O Expander with LED Intensity Control, Interrupt, and Hot-Insertion Protection
    MAX7314 18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection
    MAX6964 17-Output LED Driver/GPO with Intensity Control and Hot-Insertion Protection
    MAX7317 10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection
    MAX7318 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection

    More Like This: View Product Families for Similar Products

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help

    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

    		 Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-2747; Rev 4; 2005-04-26
    This page last modified: 2009-10-13


            •         •         •     Privacy Policy     •     Legal Notices

        Copyright © 2009 by Maxim Integrated Products