tsc2597@acf4.UUCP (Sam Chin) (04/20/85)
<>
How does one tell how fast a 64K dynamic ram is? On Intel CPU's they mark
them with -1 (10Mhz) -2 (8Mhz) -3 (5Mhz). Is there a similiar marking on
dynamic rams? What is the fastest 64K dynamic ram available. I have seen some
advertised at 120ns. Are there 100ns 64K rams?
Sam Chin
ARPAnet: tsc2597.acf4@nyu
UUCP : allegra!cmcl2!acf4!tsc2597jchapman@watcgl.UUCP (john chapman) (04/22/85)
> <> > > How does one tell how fast a 64K dynamic ram is? On Intel CPU's they mark > them with -1 (10Mhz) -2 (8Mhz) -3 (5Mhz). Is there a similiar marking on > dynamic rams? What is the fastest 64K dynamic ram available. I have seen some > advertised at 120ns. Are there 100ns 64K rams? > > Sam Chin > ARPAnet: tsc2597.acf4@nyu > UUCP : allegra!cmcl2!acf4!tsc2597 From what I've seen they divide the access time by 10, e.g. 4164-12 is a 120ns part. John
phil@amdcad.UUCP (Phil Ngai) (04/22/85)
> How does one tell how fast a 64K dynamic ram is?
In general there is no way to tell, as the various manufacturers use different
numbering schemes. AMD offers two speed categories, the Am9064-20, with a
200 nS access time and the Am9064-15, with a 150 nS access time.
--
I speak for myself and no one else.
Phil Ngai (408) 749-5720
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