More Memory Details

This is a not the way actual memory is implemented.
– fewer transistors, much more dense, relies on electrical properties
But the logical structure is very similar.
– address decoder
– word select line
– word write enable
Two basic kinds of memory (RAM = Random Access
Memory)
Static RAM (SRAM)
– fast, maintains data without power
Dynamic RAM (DRAM)
– slower but denser, bit storage must be periodically refreshed