The Development of a Bubble Memory Controller for Low-Cost FiIe Use

The bubble memory has several features such as low-cost low-power consumption, small physical size, high reliability, and non-volatility, which make it suitable for low-cost microcomputer files. The microcomputer interface and bubble control logics are integrated into a single chip which we call the bubble memory controller (BMC), making it possible to install a complete 1 Mbit bubble memory system on a 15 cm X 18 cm board. This paper describes in detail the BMC development and considers important matters in the design of large-scale logic LSI´s which are represented by the microprocessors.