Charlieplexing-减针数 LED 显示屏多路复用

摘要： 此应用程序说明讨论"Charlieplexing"— — 针数减少多重使用的 MAX6950、 MAX6951、 MAX6954、 MAX6955、 MAX6958 和 MAX6959 LED 显示驱动程序的技术。
Maxim > App Notes > AUTOMOTIVE DISPLAY DRIVERS

Keywords: charlie, charlieplex, charlieplexing, led driver, display drivers, MAX6950, MAX6951, MAX6954, Feb 10, 2003
MAX6955, MAX6958, MAX6959, LED drivers

APPLICATION NOTE 1880
Charlieplexing - Reduced Pin-Count LED Display Multiplexing

Abstract: This application note discusses "Charlieplexing" -- a pin-count reducing multiplex technique used by
the MAX6950, MAX6951, MAX6954, MAX6955, MAX6958, and MAX6959 LED display drivers.


This application note discusses how to "Charlieplex" a display driver circuit to reduce pin-count. This unusual
multiplex technique is used by the MAX6950, MAX6951, MAX6954, MAX6955, MAX6958, and MAX6959 LED
display drivers. Charlieplexing reduces driver pin-count by using some pins alternately as cathode an