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

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 400kbps 2-Wire Interface Compatible with I²C
  • 2.7V to 5.5V Operation
  • Drives 4 Monocolor or 2 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
  • 70µA 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
  • Extended Temperature Range as Standard
  • Applications/Uses

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

    Description

    The MAX6953 is a compact cathode-row display driver that interfaces microprocessors to 5 x 7 dot-matrix LED displays through an I²C-compatible serial interface. The MAX6953 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 an SPI™-compatible version, refer to the MAX6952 data sheet. An EV kit is available for the MAX6952.

    Simplified Block Diagram

    MAX6953: Typical Application Circuit MAX6953: 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 .