DEscr iptION The DS12C887 Real Time Clock plus RAM is designed as a direct upgrade replacement for the DS12887 in existing IBM compatible personal computers to add hardware year 2000 compliance. A century byte was added to memory location 50, 32h, a
一种新型的时钟日历芯片DS12C887 A New Kind of Time and Calender Chip DS12C887 and Its Application 林国清 李见为 王崇文 简要介绍了美国DALLAS公司的新型时钟日历芯片DS12C887的功能特性和内部控制寄存器参数,给出了DS12C887与8031单片机的电路连接图,同时给出了用C51编写的初始化程序和获取内部时...国外电子元器件 International Electronic Elements 2002年,第03期
