RE: Question about PET DRAM

From: Baltissen, GJPAA (Ruud) (
Date: 2005-12-12 07:22:16

Hallo Bo,

> that they are 2k chips (16kilobits/8 = 2 kilobytes).

Seen from a mathematical point of view, you're right. But each chip can
handle only one databit. As this was the case for all regular DRAM IC's in
those days, people talked about 16K DRAM's in this case. In case of SRAMs,
the people talked about xx KB RAM's. Watch the extra 'B'!. Things messed up
of course the moment DRAM's appeared with more then one databit like the
4416, 41464/4464, 414256 etc. etc. That's why it is adviced to metion a xRAM
IC like xK*y where 'y' is the number of databits. For example: a 6116 is a
2K*8 SRAM, a 44256 is a 256K*4 DRAM.

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