从 MAX7219 和 MAX7221 迁移到的 MAX6950 和 MAX6951 LED 驱动程序

摘要：此应用程序说明讨论的异同、硬件和软件，之间的较旧的MAX7219和MAX7221LED显示驱动程序和较新的MAX6950和MAX6951驱动程序。这些驱动程序的五位数字或八位共同阴极LED显示驱动程序通过高速串行接口控制。

Maxim>AppNotes>DISPLAYDRIVERSKeywords:LEDdisplaydrivers,LEDdrivers,displaydrivers,SPI,serial,blink,3VDec11,2001APPLICATIONNOTE876MigratingfromtheMAX7219andMAX7221totheMAX6950andMAX6951LEDDriversAbstract:Thisapplicationnotediscussesthesimilaritiesanddifferences,bothhardwareandsoftware,betweentheolderMAX7219andMAX7221LEDdisplaydriversandthenewerMAX6950andMAX6951drivers.Thesedriversarefive-digitoreight-digitcommon-cathodeLEDdisplaydriverscontrolledthroughahigh-speedserialinterface.Thisapplicationnotediscussesthesimilaritiesanddifferences,bothhardwareandsoftware,betweentheolderMAX7219andMAX7221LEDdisplaydriversandthenewerMAX6950andMAX6951drivers.Thesedriversaref