数字钟的设计【数字电子技术课程设计】 数字钟实际上是一个对标准频率-The figure vies for the answering device by the subject circuit and expands the circuit to make up . Have priority in code circuit , latch , decipher circuit and export the input signal of the entrant team on the display　Starting the warning circuit with the control circuit and host s switch, two the above-mentioned parts make up the subject circuit. Through timing circuit and decipher second signal function while outputs and realizes counting on the displaying that pulse produce circuit, form and expand the circuit. Through connect up , weld , debug figure vie for answering device take shape after the work.