Fun with SDRAM (Synchronous Dynamic Random-Access Memory)

Introduction

Synchronous Dynamic RAM, or SDRAM, is a standard type of computer memory. It is an evolution of the DRAM that was invented in 1966 and was used in nearly all computers, such as the original IBM PC, Sinclair ZX Spectrum, BBC Model B, Commodore 64, and many many others. It is essentially dynamic random access memory with a synchronous interface- it is a mouthful and kind of complicated but easy to understand when you have worked through how it works.

SDRAM is considered the foundation of all current dynamic RAM technology. All current memory technologies (including today's DDR5) are built on the foundation of this memory. SDRAM appeared more or less at the same time when the original Pentium CPU appeared in desktop PCs and servers. Itself, is an evolution of even older technology- the Fast Page Mode DRAM.

To be continued...