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MAX7310
2-Wire-Interfaced 8-Bit I/O Port Expander with Reset

2-Wire-Interfaced 8-Bit I/O Port Expander with Reset can Sink Up to 30mA per Port for SMBus™-Compatible and I²C-Compatible Applications


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Data Sheet
FULL DATA SHEET (PDF, 320kB)
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Description
The MAX7310 provides 8-bit parallel input/output port expansion for SMBus™-compatible and I²C-compatible applications. The MAX7310 consists of an input port register, an output port register, a polarity inversion register, a configuration register, a bus timeout register, and an SMBus/I²C-compatible serial interface. The system master can invert the MAX7310 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 eight I/O ports can be configured as input or output. An active-low reset input sets the eight I/Os as inputs. Three address-select pins configure one of 56 slave ID addresses.

The MAX7310 is available in 16-pin thin QFN, TSSOP, and QSOP packages and is specified over the -40°C to +125°C automotive temperature range.

Key Features   Applications/Uses
  • 400kHz 2-Wire Interface
  • 2.3V to 5.5V Operation
  • Low Standby Current (1.7µA typ)
  • Bus Timeout for Lock-Up-Free Operation
  • 56 Slave ID Addresses
  • Polarity Inversion
  • Eight I/O Pins that Default to Inputs on Power-Up
  • 5V Tolerant Open-Drain Output on I/O0
  • 4mm x 4mm, 0.8mm Thin QFN Package
  • -40°C to +125°C Operation

 
  • Cellular Handsets
  • Desktop Computers: Motherboards
  • GPIO
  • Industrial Control
  • Industrial Displays
  • Instrumentation and Test Measurement
  • Medical Equipment
  • RAID Systems
  • Servers
  • White LED Drivers

    Key Specifications:   I/O Port Expanders
    Part Number Features Interface Inputs/Outputs Reset Input Over-Voltage Protection Drive Current (mA) Supply Voltage (min) (V) Supply Voltage (max) (V) RoHS Available Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX7310 
    56 Slave IDs
    Serial 2-Wire 400kbit 8 Yes 5.5V 20 2.3 5.5 Yes QSOP/16
    THIN QFN/16
    TSSOP/16
    17 $1.37 @ 1k
    See All I/O Port Expanders (26)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX7310: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 2199: Driving LEDs with Push-Pull Port Expander Outputs - MAX7310
  • Application Note 3814: Port Expanders for Flip-Cell Phones Save Cost and Space - MAX7310

    Evaluation Kits
    none

    Design Guides
  • INTERFACE (PDF)

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX7310AxE.pdf

    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

    MAX7310 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7310AEE+  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7310AEE+T  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16+1*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7310AEE  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310AEE-T  
    QSOP;16 pin;31 mm²
    Dwg: 21-0055G (PDF)
    Use pkgcode/variation: E16-1*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310ATE-T  
    THIN QFN;16 pin;17 mm²
    Dwg: 21-0139H (PDF)
    Use pkgcode/variation: T1644-4*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310ATE+T  
    THIN QFN;16 pin;17 mm²
    Dwg: 21-0139H (PDF)
    Use pkgcode/variation: T1644+4*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7310ATE  
    THIN QFN;16 pin;17 mm²
    Dwg: 21-0139H (PDF)
    Use pkgcode/variation: T1644-4*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310ATE+  
    THIN QFN;16 pin;17 mm²
    Dwg: 21-0139H (PDF)
    Use pkgcode/variation: T1644+4*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7310AUE-T  
    TSSOP;16 pin;33 mm²
    Dwg: 21-0066I (PDF)
    Use pkgcode/variation: U16-2*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310AUE  
    TSSOP;16 pin;33 mm²
    Dwg: 21-0066I (PDF)
    Use pkgcode/variation: U16-2*
    -40°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX7310AUE+  
    TSSOP;16 pin;33 mm²
    Dwg: 21-0066I (PDF)
    Use pkgcode/variation: U16+2*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX7310AUE+T  
    TSSOP;16 pin;33 mm²
    Dwg: 21-0066I (PDF)
    Use pkgcode/variation: U16+2*
    -40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2003-02-27 

    Related Products
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    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
    MAX7311 2-Wire-Interfaced 16-Bit I/O Port Expander with Interrupt and Hot-Insertion Protection
    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
    MAX1608, MAX1609 Octal, SMBus-to-Parallel I/O Expanders

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     Description 
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    Document Ref.: 19-2698; Rev 3; 2005-03-11
    This page last modified: 2008-03-13




             


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