[sdiy] 2xD / Digital Module .. saving samples

[Needham, Alan]

Would it be possible to use USB for the 'generic' RAM? Then it might be
possible to save dozens of loops and trade them around??? A 1 gig stick
is so cheap now.

	Alan

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Seb Francis
Sent: 19 November 2008 12:54
To: Synth DIY
Subject: [sdiy] 2xD / Digital Module .. saving samples

I should actually get on with the hardware design in a minute, but 
thought I'd share a couple more ideas...

Been thinking about sampler mode and how if you got a really good loop 
going around that it would be nice to be able to save it easily.  So I'm

considering laying a footprint for an SPI Flash RAM on the board.

I'd like to make the footprint as generic as possible, but there seem to

be a few different variations out there, so I thought I'd run past this 
list what my limited research has come up with ...

The capacity needs to be 4M-bit, or 8M-bit to be able to store 2 
alternative 'memory locations'.

Package:
8 pin SOIC with 208-mil wide body

Pin-outs:
1 - ! Chip Select
2 - Data Output
3 - ! Write Protect Input
4 - Ground
5 - Data Input / Output (although to be more generic this would only be 
implemented as Data Input)
6 - Serial Clock Input
7 - ! Hold Input
8 - VCC (3.3V)

Does this look generic to more experienced eyes?

Seb



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