Memory;  function transformations;  sampling;  sampling theorem;  DDS

Starting from the basic working principle of memory, according to the sampling theorem, the memory is studied theoretically, the function of function transformation of memory is summarized, the idea of designing function generator by DDS method is proposed, and on this basis, the application example of programmable multiple analog continuous function generators composed of EPROM is given. The results show that the function generator designed by this method has the characteristics of high intelligence and controllable parameters.