On 25 Apr 2007 at 19:01, JOHN FLUKE wrote:
I have a bunch (more than 80) of Both MB8116E and ITT
4116
That "F" is Fujitsu, not Fairchild. The 8116 is pretty much the same
part as the 4116--3 supply 16Kx1 DRAM.
However, there may be small operational differences between the 8116,
4116, and Intel 2117. In particular, it's been my experience that
the early Japanese DRAMs did a better job of holding onto data, not
needing refresh quite as often, as say, Intel.
In particular, I recall playing around with a memory test that
gradually increased the interval between refresh until memory started
failing. I began to wonder if there was something wrong with my test
when some NEC uPD416 DRAMs went 15 seconds without refresh and
*still* retained data. Nothing wrong with the test--just good DRAM
design.
Cheers,
Chuck