[Coco] Off Topic: FM16W08-SH DIP part?

[Gene Heskett]

On Friday 24 May 2019 11:34:46 am Allen Huffman wrote:

> I’m organizing all my electronics parts for the first time ever. Most
> everything I have is for CoCo or Arduino projects (the rest are for
> Halloween stuff). I came across a tiny chip on a DIP package (24 pins)
> and have no idea why I have it. It’s this:
>
> https://www.cypress.com/part/fm16w08-sg
> <https://www.cypress.com/part/fm16w08-sg>
>
> I *think* this is telling me this is 64K?

64Kb note lowercase b, so its an 8kx8 bits, you'd need 8 of them for a 
full 64KB. At $11.55 a copy, kind of expen$ive.

Also plenty fast for some video displays at 70 ns access time.

> I have no idea why I have this, or what it’s for, so I thought I’d ask
> here and see if this was something that came up in relation to a CoCo
> project in the past five or so years.
>
> Anyone recognize it from anything?

Not right off-hand, but one of them with some support circuitry woulds 
sure make a nice COLOR version of a wp-rs.  Now thats a tasty thought...
Most of the wp-rs's used a 6116 or a 2028 which was a slower 2kx8 memory 
chip, which turned out to be in the one case where I had to replace a 
2028, which was a 70 ns chip, with a 6116, a 200ns chip, in something 
I've since forgotten what it was used for at the tv station, but that 
200ns rated chip, which was cmos, was still working perfectly 10 years 
later when I retired, also running relatively cool compared to the nmos 
2028's surrounding it.

But whats a F-RAM, terminology I've not encountered closely enough to 
remember it. Wet ram and short term memory aren't being as friendly as 
I'd like...

> --
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Cheers, Gene Heskett
-- 
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