Static uses four transistors lets say, two gates with feedback in a classic flip flop implementation, you write the bit high or low and so long as the power doesnt turn off it stays that value it doesnt forget (so long as the power stays on). Instead in both cases they have to do with memory that remains powered, they are both volatile memories. The S in SRAM is for Static sure which the term implies it might survive esp when you learn for DRAM the D means dynamic, and perfectly fine to assume one survives a power cycle and the other does not but unfortunately that is not what they refer to. volaitle means it cannot non-volatile means it can. Volatile in this sense means it can or cannot survive a power cycle. And flash is a newer technology electrically eraseable and programmable rom or non-volatile storage. ROM implementations are not technically read only PROM is programmable rom which means writeable, so that kinda breaks down the term EPROM electrically programmable, EEPROM is electrically eraseable and programmable. The convention is that ROM is non-volatile and RAM is volatile which are the relevant terms here. Now RAM by that definition can be safe to use for things like a ROM (Read Only Memory) as the Random part has to do with addressing, can I address any random address I want or can I only read this thing using linear one address after the other per some rules. SRAM means Static RAM, RAM means Random Access Memory. Would do instead of normal RAM? RAM=lose value when no power, So adding a major section to this answer, your comment is critical here:īut Is the value stored even after power down? Isn't that what SRAM EDIT, your question COMPLETELY changes the answer as you are not interested in SRAM writing at all but flash/eeprom.
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