摘要
一种多用途BCD码逻辑信号发生器,由多谐振荡器、异步10进制加法计数器、2线4线译码器、4选1数据选择器、10进制数码键盘,编码锁定电路及BCD码存储器等构成.能快速、方便、准确、灵活地产生任一类型的4位BCD码,为测试,调试数字电路及微处理器的各输入端子,提供了一种简易可行的方法,同时该电路稍经扩展,便可构成多种有价值的应用电路.
In this paper,we present a kind of BCD code logic signal generator for versatile purpose.It is composed of mulitvibrator,asynchronous decimalcoded add counter,binarycoded four output decoder,one out of four date selector,decimal nixie keyboard,coded lockin circuit and BCD code memory device.It can generate any kinds of 4bit BCD codes quickly and correctly.Thus,it is convenient and flexible for us to measure and adjust the digit circuit and microprocessor.Meanwhile,if the circuit is changed slightly,many valuable and practical circuits will be made up.
出处
《云南大学学报(自然科学版)》
CAS
CSCD
1998年第S1期35-38,共4页
Journal of Yunnan University(Natural Sciences Edition)