2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver
DescriptionThe 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.
- Audio/Video Equipment
- Gaming Machines
- Industrial Displays
- Medical Equipment
- Message Boards
Technical DocumentsTutorial 1883 LEDs Are Still Popular (and Improving) after All These Years
App Note 1193 Electronic Displays Comparison
App Note 1146 Adding Panel LED Intensity Control to MAX6952 and MAX6953 5x7 Matrix LED Drivers
App Note 1034 Software Control of the MAX6952 and MAX6953 LED Drivers in Graphic Applications
App Note 1033 Building Dot Matrix Graphic Panels with the MAX6952 and MAX6953 5x7 LED Drivers
App Note 980 Experimenting with the MAX6952 and MAX6953 SPI and I²C LED Display Drivers from a PC
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
- High Integration
- Low EMI
- I2C Control/Diagnostic Interface with FLTB (Interrupt) Output