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MAX7328, MAX7329
I²C Port Expanders with Eight I/O Ports


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 616kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX7328/MAX7329 are 2-wire serial-interfaced peripherals with eight I/O ports. Any port can be used as a logic input or an open-drain output.

All input ports are continuously monitored for state changes (transition detection). Transitions are alerted through the open-drain, 5.5V-tolerant INT-bar output.

The MAX7328 and MAX7329 versions differ only by their slave ID address ranges. The MAX7328 has a slave ID range of 0100xxx (0x20 to 0x27). The MAX7329 has a slave ID range of 0111xxx (0x38 to 0x3F).

For a similar part with overvoltage-protected I/Os and a bus RST-bar input that clears the I²C serial interface, refer to the MAX7321 data sheet. The MAX7328/MAX7329 are members of a family of pin-compatible port expanders with a choice of input ports, open-drain I/O ports, and push-pull output ports (see the Selector Guide in the full data sheet).

Key Features   Applications/Uses
  • 100kHz, 5.5V-Tolerant, I²C-Compatible Serial Interface
  • 2.5V to 5.5V Operating Supply Voltage Range
  • Low-Standby-Current Consumption of 10µA (max)
  • I²C Bus-to-Parallel-Port Expander
  • Open-Drain Interrupt Output INT-bar
  • 8-Bit Remote I/O Port for the I²C Bus
  • Latched Outputs with High-Current-Drive Capability for Directly Driving LEDs
  • Address by Three Hardware Address Pins for Use of Up to Eight Devices
         (Up to 16 Using Both MAX7328/MAX7329)
  • -40°C to +125°C Automotive Temperature Range
  • Second Sources to PCF8574 and PCF8574A

     
  • Automotive
  • Industrial
  • Notebooks
  • RAID
  • 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
    MAX7328 
    16 Slave IDs
    Port pullups
    Transition Detection
    Serial - I2C Compatible
    Serial 2-Wire 400kbit
    8 Yes 5.5V 25 2.5 5.5 -
    MAX7329  $1.03 @1k
    See All I/O Port Expanders (26)

    Diagram
    MAX7328, MAX7329: Typical Application Circuit
    Typical Application Circuit

    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: 1-13 of 13

    MAX7328 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7328AWE+  
    Active SOIC(W);16 pin;111.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7328AWE+T    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX7328AWE    
    Active SOIC(W);16 pin;111.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7328AWE-T    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX7328AAP+    
    Active SSOP;20 pin;57.9 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0094 (PDF)
    Use pkgcode/variation: A20+5*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7328AAP+T    
    Active SSOP;20 pin;57.9 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0094 (PDF)
    Use pkgcode/variation: A20+5*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7328AAP    
    Active SSOP;20 pin;57.9 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0094 (PDF)
    Use pkgcode/variation: A20-5*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7328AAP-T    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX7329 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7329AWE    
    Active SOIC(W);16 pin;111.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7329AWE-T    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX7329AWE+  
    Active SOIC(W);16 pin;111.8 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7329AWE+T    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet
    MAX7329APP    
    Active

    Land Pattern: Not Available

    -40°C to +125°C See data sheet

    More Information
  • New Product Press Release 2005-11-01

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    Document Ref.: 19-3829; Rev 0; 2005-11-03
    This page last modified: 2009-05-04


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