CAJ | 학술논문

在实际应用中常采用集成4位二进制计数器74LS161构成60进制计数器。对现有教材中的一道例题采用Multisim仿真并观察结果，发现其实构成的是50进制计数器。结合74LS161的逻辑功能表，分析了用74LS161构成60进制计数器时出现错误计数循环的原因，给出了两种修改电路设计的方法，并利用仿真实验进行验证。结果表明设计方法是正确的。
재실제응용중상채용집성4위이진제계수기74LS161구성60진제계수기。대현유교재중적일도례제채용Multisim방진병관찰결과，발현기실구성적시50진제계수기。결합74LS161적라집공능표，분석료용74LS161구성60진제계수기시출현착오계수순배적원인，급출료량충수개전로설계적방법，병이용방진실험진행험증。결과표명설계방법시정학적。
A 4-bit integrated binary counter 74LS161 is often used to compose a modulo -60 counter in practical application ,A circuit from the existing textbook example is simulated with Multisim .The results show the circuit is a modulo -50 counter in fact .The reasons for wrong count cycle in using 74LS161 to compose modulo-60 counter is analyzed ,based on the logic function table of 74LS161 .Two Modifi-cation methods is given and verified with simulation experiment .