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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