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4-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver

Product Details

The MAX6952 is a compact cathode-row display driver that interfaces microprocessors to 5 x 7 dot-matrix LED displays through an SPI™-compatible serial interface. The MAX6952 drives up to four digits (140 LEDs).

Included on chip are an ASCII 104-character font, multiplex scan circuitry, column and row drivers, and static RAM that stores each digit, as well as font data for 24 user-definable characters. The segment current for the LEDs is set by an internal digit-by-digit digital brightness control.

The device includes a low-power shutdown mode, segment blinking (synchronized across multiple drivers, if desired), and a test mode that forces all LEDs on. The LED drivers are slew rate limited to reduce EMI. For a 2-wire interfaced version, refer to the MAX6953 data sheet. An EV kit is available for the MAX6952.

Key Features

  • High-Speed 26MHz with SPI-/QSPI-™/ MICROWIRE™-Compatible Serial Interface
  • 2.7V to 5.5V Operation
  • Drives Four Monocolor or Two Bicolor Cathode-Row 5 x 7 Matrix Displays
  • Built-In ASCII 104-Character Font
  • 24 User-Definable Characters Available
  • Automatic Blinking Control for Each Segment
  • 36µA Low-Power Shutdown (Data Retained)
  • 16-Step Digital Brightness Control
  • Display Blanked on Power-Up
  • Slew-Rate-Limited Segment Drivers for Lower EMI
  • 36-Pin SSOP and 40-Pin DIP Packages
  • Applications/Uses

    • Audio/Video Equipment
    • Gaming Machines
    • Industrial Displays
    • Medical Equipment
    • Message Boards
    Parametric specs for Display Drivers
    LCD or LED LED
    Display Type Cathode Row
    Interface Serial SPI 26Mbit
    Digits or Char. 4-Digit
    Output Format 5x7 matrix
    Fonts 104 char ASCII
    Segment Blinking Yes
    VSUPPLY (V) (min) 2.7
    VSUPPLY (V) (max) 5.5
    Package/Pins PDIP/40
    SSOP/36
    Budgetary
    Price (See Notes)
    $13.60 @1k
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    Simplified Block Diagram

    MAX6952: Typical Application Circuit MAX6952: Typical Application Circuit Zoom icon

    Design & Development

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    Description

    The MAX6952 evaluation kit (EV kit) is an assembled and tested printed circuit board (PCB) that demonstrates the MAX6952 SPI™-interfaced four-digit 5 x 7 matrix LED display driver. Two cascaded MAX6952s are used to drive eight 5 x 7 monocolor matrix displays. The EV kit is powered by a user-supplied 2.7VDC to 5.5VDC power supply. The SPI-compatible serial interface is connected to an IBM-compatible PC parallel port for easy evaluation. The EV kit can be reconfigured for interfacing to a user's microcontroller for standalone operation.

    Windows® 95/98/2000-compatible software provides a user-friendly interface to demonstrate the features of the MAX6952 IC. The program is menu driven and offers a graphic interface with control buttons.

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    Features

    • 8-Character Red 5 x 7 Matrix Cathode-Row Display
    • SPI-Compatible Serial Interface
    • Operates from a 2.7V to 5.5V Supply Range
    • Reconfigurable for Standalone Operation with an External Microcontroller
    • Easy-to-Use Menu-Driven Software
    • Windows 95/98/2000-Compatible Software
    • Fully Assembled and Tested

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    Support & Training

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    Parameters

    Parametric specs for Display Drivers
    LCD or LED LED
    Display Type Cathode Row
    Interface Serial SPI 26Mbit
    Digits or Char. 4-Digit
    Output Format 5x7 matrix
    Fonts 104 char ASCII
    Segment Blinking Yes
    VSUPPLY (V) (min) 2.7
    VSUPPLY (V) (max) 5.5
    Package/Pins PDIP/40
    SSOP/36
    Budgetary
    Price (See Notes)
    $13.60 @1k

    Key Features

  • High-Speed 26MHz with SPI-/QSPI-™/ MICROWIRE™-Compatible Serial Interface
  • 2.7V to 5.5V Operation
  • Drives Four Monocolor or Two Bicolor Cathode-Row 5 x 7 Matrix Displays
  • Built-In ASCII 104-Character Font
  • 24 User-Definable Characters Available
  • Automatic Blinking Control for Each Segment
  • 36µA Low-Power Shutdown (Data Retained)
  • 16-Step Digital Brightness Control
  • Display Blanked on Power-Up
  • Slew-Rate-Limited Segment Drivers for Lower EMI
  • 36-Pin SSOP and 40-Pin DIP Packages
  • Applications/Uses

    • Audio/Video Equipment
    • Gaming Machines
    • Industrial Displays
    • Medical Equipment
    • Message Boards

    Description

    The MAX6952 is a compact cathode-row display driver that interfaces microprocessors to 5 x 7 dot-matrix LED displays through an SPI™-compatible serial interface. The MAX6952 drives up to four digits (140 LEDs).

    Included on chip are an ASCII 104-character font, multiplex scan circuitry, column and row drivers, and static RAM that stores each digit, as well as font data for 24 user-definable characters. The segment current for the LEDs is set by an internal digit-by-digit digital brightness control.

    The device includes a low-power shutdown mode, segment blinking (synchronized across multiple drivers, if desired), and a test mode that forces all LEDs on. The LED drivers are slew rate limited to reduce EMI. For a 2-wire interfaced version, refer to the MAX6953 data sheet. An EV kit is available for the MAX6952.

    Simplified Block Diagram

    MAX6952: Typical Application Circuit MAX6952: Typical Application Circuit Zoom icon

    Support & Training

    Search our knowledge base for answers to your technical questions.

    Filtered Search

    Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal