2 ms·
Yes, designing ram is a lower level operation as compared to designing logic via an HDL and needs to directly take the process (chemistry, optics, mechanics) of
by sitkack 6y ago
Yes, designing ram is a lower level operation as compared to designing logic via an HDL and needs to directly take the process (chemistry, optics, mechanics) of the fab into account.
https://openram.soe.ucsc.edu/ https://openram.soe.ucsc.edu/
- bserge 6y agoDRAM chips are fascinating. Instead of going with the much more expensive SRAM, someone decided that refreshing billions of capacitors hundreds of times a second while performing read and write operations is an acceptable way of storing data (even if only while powered). I wonder what the managers who first heard the idea must've thought :D And it works so well! It's probably one of the most reliable component in a computer.
- pjc50 6y agoMany of the early RAM systems were non-persistent (mercury delay lines, phosphor) and some were destructive-read (core memory). Appears to have been invented by Dennard of Dennard Scaling: https://www.thoughtco.com/who-invented-the-intel-1103-dram-chip-4078677 https://www.thoughtco.com/who-invented-the-intel-1103-dram-c...