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MAX7317
10-Port SPI-Interfaced I/O Expander with Overvoltage and Hot-Insertion Protection


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Data Sheet
FULL DATA SHEET (PDF, 296kB)
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Description
The MAX7317 serial-interfaced peripheral provides microprocessors with 10 I/O ports rated to 7V. Each port can be individually configured as either an opendrain output, or an overvoltage-protected Schmitt input.

The MAX7317 supports hot insertion. All port pins remain high impedance in power-down (V+ = 0V) with up to 8V asserted on them.

The MAX7317 is available in 16-pin thin QFN and QSOP packages and operates in the -40°C to +125°C range.

For a similar part with constant-current outputs and 8-bit PWM controls, refer to the MAX6966/MAX6967 data sheet.

Key Features   Applications/Uses
  • High-Speed, 26MHz SPI™-/QSPI-™/MICROWIRE™- Compatible Serial Interface
  • 2.25V to 3.6V Operation
  • I/O Port Inputs are Overvoltage Protected to 7V
  • I/O Port Outputs are 7V-Rated Open Drain
  • I/O Ports Support Hot Insertion
  • 0.7µA (typ), 1.9µA (max) Standby Current
  • Tiny 3mm x 3mm, 0.8mm High Thin QFN Package
  • -40°C to +125°C Temperature Range

     
  • Automotive
  • Cell Phones
  • Industrial Controllers
  • Portable Equipment
  • System Monitoring
  • White Goods

    Key Specifications:   I/O Port Expanders
    Part Number Interface Inputs/Outputs Over-Voltage Protection Drive Current (mA) Supply Voltage (min) (V) Supply Voltage (max) (V) Price**
    MAX7317  Serial SPI 26Mbit 10 7V 10 2.25 3.6 $1.09 @ 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
    MAX7317: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  • Application Note 1879: Using Maxim SPI-compatible Display Drivers with other SPI Peripherals - MAX7317
  • Application Note 2198: Driving LEDs with Open Drain Port Expander Outputs - MAX7317, MAX7317

    Evaluation Kits
    none

    Design Guides
  • Interface (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: 1-8 of 8

    MAX7317 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX7317AEE  
    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
    MAX7317AEE-T  
    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
    MAX7317AEE+  
    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
    MAX7317AEE+T  
    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
    MAX7317ATE+  
    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
    MAX7317ATE+T  
    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
    MAX7317ATE  
    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
    MAX7317ATE-T  
    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

    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
    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
    MAX7318 2-Wire-Interfaced, 16-Bit, I/O Port Expander with Interrupt and Hot-Insertion Protection
    MAX6966, MAX6967 10-Port Constant-Current LED Drivers and I/O Expanders with PWM Intensity Control

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    Document Ref.: 19-3380; Rev 2; 2005-04-26
    This page last modified: 2005-07-06


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