这个是74hc154的pdf资料 对你研究74hc154非常有用-This is 74hc154 the pdf information is very useful for your research 74hc154

本程序为16X16点阵显示程序，是用74HC154做扫描，P0-P2为数据输出来现实。-This program is 16X16 dot matrix display program, is to use 74HC154 done scanning, P0-P2 for data output to the reality.