MAX6956
Info: : PRODUCTION
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MAX6956

2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander

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Info: : PRODUCTION tooltip
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Part Details
Part Models 8
1ku List Price Starting From $5.86
Features
  • 400kbps I²C-Compatible Serial Interface
  • 2.5V to 5.5V Operation
  • -40°C to +125°C Temperature Range
  • 20 or 28 I/O Ports, Each Configurable as
    • Constant-Current LED Driver
    • Push-Pull Logic Output
    • Schmitt Logic Input
    • Schmitt Logic Input with Internal Pullup
  • 11µA (max) Shutdown Current
  • 16-Step Individually Programmable Current Control for Each LED
  • Logic Transition Detection for Seven I/O Ports
Additional Details
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The MAX6956 compact, serial-interfaced LED display driver/I/O expander provide microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input, logic output, or common-anode (CA) LED constant-current segment driver. Each port configured as an LED segment driver behaves as a digitally controlled constant-current sink, with 16 equal current steps from 1.5mA to 24mA. The LED drivers are suitable for both discrete LEDs and CA numeric and alphanumeric LED digits.

Each port configured as a general-purpose I/O (GPIO) can be either a push-pull logic output capable of sinking 10mA and sourcing 4.5mA, or a Schmitt logic input with optional internal pullup. Seven ports feature configurable transition detection logic, which generates an interrupt upon change of port logic level. The MAX6956 is controlled through an I²C-compatible 2-wire serial interface, and uses four-level logic to allow 16 I²C addresses from only 2 select pins.

The MAX6956AAX and MAX6956ATL have 28 ports and are available in 36-pin SSOP and 40-pin thin QFN packages, respectively. The MAX6956AAI and MAX6956ANI have 20 ports and are available in 28-pin SSOP and 28-pin DIP packages, respectively.

For an SPI-interfaced version, refer to the MAX6957 data sheet. For a lower cost pin-compatible port expander without the constant-current LED drive capability, refer to the MAX7300 data sheet.

Applications

  • Automotive
  • Bar Graph Displays
  • Industrial Controllers
  • Panel Meters
  • Set-Top Boxes
  • System Monitoring
  • White Goods
Part Models 8
1ku List Price Starting From $5.86

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX6956AAI+
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MAX6956AAI+T
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MAX6956AAX+
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MAX6956AAX+T
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MAX6956AAX/V+
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MAX6956AAX/V+T
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MAX6956ATL+
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MAX6956ATL+T
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Part Models

Product Lifecycle

PCN

Mar 1, 2016

- 1618

ASSEMBLY

MAX6956AAX+

PRODUCTION

MAX6956AAX+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Mar 1, 2016

- 1618

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ASSEMBLY

MAX6956AAX+

PRODUCTION

MAX6956AAX+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX6956EVKIT

Evaluation Kit for the MAX6956

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MAX6956EVKIT

Evaluation Kit for the MAX6956

Evaluation Kit for the MAX6956

Features and Benefits

  • Windows 2000/XP-, Windows Vista (32-Bit)- and Windows 10** Compatible Software
  • USB-PC Connection (Cable Included)
  • USB Powered
  • Lead-Free and RoHS Compliant
  • Proven PCB Layout
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Detail

The MAX6956 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that contains a MAX6956 IC. The MAX6956 is a 28-port LED driver and I/O expander. The EV kit also includes Windows® 2000/XP- and Windows Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX6956.

Applications

  • Automotive
  • Bar Graph Displays
  • Industrial Controllers
  • Panel Meters
  • Set-Top Boxes
  • System Monitoring
  • White Goods

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