General Description

The MAX6950/MAX6951 are compact common-cathode display drivers that interface microprocessors to individual 7-segment numeric LED digits, bar graph, or discrete LEDs through an SPI™-, QSPI™-MICROWIRE™- compatible serial interface. The supply voltage can be as low as 2.7V.

The MAX6950 drives up to five 7-segment digits or 40 discrete LEDs. The MAX6951 drives up to eight 7-segment digits or 64 discrete LEDs.

Features

♦ High-speed 26MHz SPI-, QSPI-, MICROWIRECompatible Serial Interface

♦ +2.7V to +5.5V Operation

♦ Individual LED Segment Control

♦ Segment Blinking Control that Can Be Synchronized Across Multiple Drivers

♦ Hexadecimal Decode/No-Decode Digit Selection

♦ Digital Brightness Control

♦ Display Blanked on Power-Up

♦ Drives Common-Cathode LED Digits

♦ Multiplex Clock Syncronizable to External Clock

♦ Slew-Rate Limited Segment Drivers for Low EMI

♦ 75µA Low-Power Shutdown (Data Retained)

♦ Small 16-Pin QSOP Package

Applications

   Set-Top Boxes

   Panel Meters

   White Goods

   Bar Graphs and Matrix Displays

   Industrial Controllers and Instrumentation

   Professional Audio Equipment

   Medical Equipment