Charlieplexing - Reduced Pin-Count LED Display Multiplexing

摘要：本应用笔记讨论“ Charlieplexing的” - 一根针数减少多重的MAX6950可使用的技术， MAX6951 ， MAX6954 ， MAX6955 ， MAX6958 ， MAX6959 LED显示驱动器。

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