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Maxim > Products > [LED Lighting and LCD Display ICs] 
MAX7320
I²C Port Expander with Eight Push-Pull Outputs

An Eight Push-Pull Output GPIO/LED Driver with an RST Input and Software Compatible with the MAX7324, MAX7325, MAX7326, and MAX7327 (16-Port GPIOs)


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 204kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX7320 2-wire serial-interfaced peripheral features eight push-pull outputs with selectable power-up logic states.

The +5.5V tolerant active-low RST input clears the serial interface, terminating any I²C communication to or from the MAX7320.

The MAX7320 uses two address inputs with four-level logic to allow 16 I²C slave addresses. The slave address also determines the power-up state level for the outputs in groups of four ports.

The MAX7320 supports hot insertion. The serial interface SDA, SCL, AD0, AD2, and active-low RST remain high impedance in power-down (V+ = 0V) with up to +6V asserted on them.

The MAX7320 is one device in a family of pin-compatible port expanders with a choice of input ports, open-drain I/O ports, and push-pull output ports.

The MAX7320 is available in 16-pin QSOP and 16-pin TQFN packages, and is specified over the automotive temperature range (-40°C to +125°C).

An evaluation kit is available:  MAX7320EVKIT  

Key Features   Applications/Uses
  • 400kHz, +5.5V-Tolerant I²C Serial Interface
  • +1.71V to +5.5V Operating Voltage
  • Eight Push-Pull Output Ports with Selectable Power-Up Logic States
  • Active-Low RST Clears the Serial Interface, Terminating Any Serial Transaction to or from the MAX7320
  • AD0 and AD2 Inputs Select from 16 Slave Addresses
  • Low 0.6µA (typ) Standby Current
  • -40°C to +125°C Temperature Range

 
  		• Automotive
  		• Cell Phones/PDAs
  		• Notebooks
  		• RAID
  		• Satellite Radios
  		• Servers

    Key Specifications:  I/O Port Expanders
    Part Number Features Interface Outputs Reset Input Drive Current
    (mA)    		 VSUPPLY
    (V)    		 VSUPPLY
    (V)    		 Price
    min max See Notes
    MAX7320 
    16 Slave IDs
    Low Standby Current
    Serial - I2C Compatible
    Serial 2-Wire 400kbit
    		 8 Yes 25 1.71 5.5 $0.98 @1k
    See All I/O Port Expanders (26)

    Diagram
    MAX7320: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  		• Application Note 3814: Port Expanders for Flip-Cell Phones Save Cost and Space - MAX7320

    Evaluation Kits
  		• MAX7320EVKIT

    Design Guides
  		• Interface (PDF)
  		• Microprocessor Supervisory (PDF)
  		• Displays (PDF)

    Reliability Reports
  		• Show FIT data for:
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    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: 1-8 of 8

    MAX7320 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7320AEE+  
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7320AEE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7320AEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-4*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7320AEE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX7320ATE+  
    		Active TQFN;16 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0031 (PDF)
    Use pkgcode/variation: T1633+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7320ATE+T    
    		Active TQFN;16 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0031 (PDF)
    Use pkgcode/variation: T1633+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7320ATE    
    		Active TQFN;16 pin;10 mm²
    Outline Drawing: 21-0136 (PDF)
    Land Pattern: 90-0031 (PDF)
    Use pkgcode/variation: T1633-4*
    		-40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7320ATE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet

    More Information
  		• Topmark Coding: MAX7320
  		• New Product Press Release 2005-11-01

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    Document Ref.: 19-3879; Rev 0; 2005-11-08
    This page last modified: 2008-02-07


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