Thank you very much, Frank! >From your posts here and elsewhere I assumed you weren't particularly >interested in building and selling these, but if you do, then by all means let >us know what the cost would be.
However, having just sent something to Italy which, as you know, hasn't even arrived yet, I suspect postage would be an issue). m ----- Original Message ----- From: "Francesco Messineo" <[email protected]> To: <[email protected]> Sent: Saturday, March 17, 2018 5:36 AM Subject: Re: [M100] 8K RAM Chip > Hi Mike, > > On Fri, Mar 16, 2018 at 6:00 PM, Mike Stein <[email protected]> wrote: >> Hi Frank, >> >> Any chance you'd share the PCB files for your RAM modules so we can build >> some? > > the gerbers are attached. Don't blame me if the modules don't work as > expected, obtaining the lowest current drain is also a matter of > correct cleaning after assembling them. > I can make batches of built and tested modules both for ram errors and > current drain in standby if there's enough demand. Everybody who had > my modules seems satisfied so far. > The ICs are your favourite 8kx8 SRAM (with low standby current option > and two opposite polarity chip select pins) and a 74HC86. Do not use > HCT or AC or anything else if you care about standby current. > The 1206 pads are (obviously) for a couple of 100nF caps as overkill > DC decoupling. > Frank >
