$56 for a single
https://www.digikey.com/product-detail/en/cypress-semiconductor-corp/CY62177EV30LL-55ZXI/428-3278-ND/2188331
This looks compatible for $26 for a single
https://www.digikey.com/product-detail/en/renesas-electronics-america/RMLV3216AGSA-5S2-AA0/RMLV3216AGSA-5S2-AA0-ND/9650085
$32 at Mouser
https://www.mouser.com/Semiconductors/Memory-ICs/SRAM/_/N-4bzpt?P=1z0w8ge
It even seems to have a lower standby current. The Cypress data sheet
says 3uA and the Renesas says 0.6uA
If I buy one of these myself and solder it, will that be enough other
than re-programming?
$26 is a lot, and I wouldn't expect you to buy 100 of them for $2400
but, if I want it, and assuming a perfect solder job, is there anything
else besides a reflash required to make it work?
Obviously, it's a given that all concept of warranty and liability goes
out the window instantly.
--
bkw
On 6/29/20 7:38 PM, Stephen Adolph wrote:
Well, I have built and tested everything but I am sad to report that I
am the victim of counterfeit components.
All the 4MB SRAMs that I bought are actually 2MB SRAMs!
I've complained to the seller, and we'll see what they say about their
"certified" parts.
4 MB SRAMs are hard to find at a reasonable price. I ordered the same
product twice from the same seller. The first time I paid 2x what I
paid the second time. I guess that's the hint right there.
What does this mean? It means that everyone on this build that wanted
4MB (basically everyone) will have to settle for 2MB.
Also, If I can't find 4MB parts for a reasonable cost, I may not be able
to offer that version again.
For the curious, here is what Digikey wants for the parts I spec'd
https://www.digikey.ca/en/products/detail/cypress-semiconductor-corp/CY62177EV30LL-55ZXIT/2184405
Steve
On Mon, Jun 29, 2020 at 11:19 AM r cs <[email protected]
<mailto:[email protected]>> wrote:
Thank you kindly! I'm enjoying daydreaming about using them -- so
enjoy summer first!
I appreciate your efforts, and I hope you and yours are well.
Take care!
rcs
On Mon, Jun 29, 2020 at 8:04 AM Stephen Adolph <[email protected]
<mailto:[email protected]>> wrote:
For those who have reached out to order REXCPM-
I'm sorry that they are not done yet! But the good news is that
all the hardware is now built - 25 units.
Next steps are to program them, debug/test, then package and ship.
Thanks for your patience; it is summer time here and there are
lots of time demands ;).
cheers
Steve
--
/Níl aon tinteán mar do thinteán féin. /[Irish Gaelic]
(There is no fireside like your own fireside.)
--
bkw
