| ??? 06/05/06 18:55 Read: times |
#117771 - not quite. You haven't gone back enough Responding to: ???'s previous message |
My first SRAM's were 1Kx1, e.g. 2115/2125/2102, or 256x4 in the 2111. There had been smaller ones, 256x1, but I wasn't doing stuff with them. I don't remember any 2Kbit RAM or 2Kbyte RAM.
DRAM also followed the 1K, 4K, 16K, 64K-bit density. This is because they wanted to double the density in their geometry. When the moved from 2 micron lines to 1 micron lines, that made for doubled density on each axis, hence, 4-fold density. I used 1702 EPROMs (256x8) and MM5203's (256x8), before the 27xx EPROMs became available. RE |
| Topic | Author | Date |
| RAM sizes | 01/01/70 00:00 | |
| not quite. You haven't gone back enough | 01/01/70 00:00 | |
| I dunno when I were a lad | 01/01/70 00:00 | |
| I've got some of those, too. | 01/01/70 00:00 | |
| oh yes | 01/01/70 00:00 | |
| Don't forget thos 64 BIT SRAMs ... | 01/01/70 00:00 | |
Are those real? | 01/01/70 00:00 |