General Description

The MAX6952 is a compact cathode-row display driver that interfaces microprocessors to 5 ✕ 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.

Features

♦ High-Speed 26MHz with SPI-/QSPI-™/MICROWIRE™-Compatible Serial Interface

♦ 2.7V to 5.5V Operation

♦ Drives Four Monocolor or Two Bicolor CathodeRow 5 ✕ 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

Message Boards

   Medical Equipment

   Industrial Displays

   Audio/Video Equipment

   Gaming Machines

   Applications