MAX6953

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


Please check latest availability status for a specific part variant.

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.
MAX6953: Typical Application Circuit MAX6953: Typical Application Circuit Enlarge+

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

    CAD Symbols and Footprints

  • MAX6953EAX
  • MAX6953EAX+
  • MAX6953EAX+T
  • MAX6953EAX-T
  • MAX6953EPL
  • MAX6953EPL+
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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