Memory architecture and the influence of the microprocessor
INTRODUCTION In the last year the whole area of memory products has taken on a new order of importance, partly because of new technologies and products in the memory area itself, and partly because of the exploding microprocessor market. Microprocessors demand bit slice orientated memories and generally do not need large capacity; as a result many 4-bit, 8-bit and even 16-bit parts have appeared. Technologies vary from bipolar Schottky to N-channel and silicon gate CMOS, depending on the ultimate parametric objective. This paper describes some of these parts, such as 4k RAMS, ROMS, PROMS and the various architectures used to optimise applications and end product losts.