Discussion about the Korg PolySix synthesizer

I found the data sheet.   I don't think I can attach it here.

The difference is the standby current.   The L part is less than 2 uA.
The non-part is less than 20 uA.   So it affects your battery life.
If you want to see where you stand, apply 3V in place of the battery
to your populated board.  It doesn't need to be in the PolySix.
Put an ammeter in series with whatever is supplying the 3V,
and see what the standby current of the SRAM is.   
Of course you don't want the battery connected when you do this 
test.  Maybe you installed a socket for it?   If you used a socket
for the SRAM, then you can test several parts and pick the lowest 
one.

If you want the data sheet, contact me using the contact info
at my site.   tauntek.com   And I will email it to you.

Bob Grieb

--------------------------------------------
On Sat, 2/6/16, jw_dewdney@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:

 Subject: [PolySix] POLYSIX SRAM CHIP REPLACEMENT?
 To: PolySix@yahoogroups.com
 Date: Saturday, February 6, 2016, 2:47 PM
 
 
  
 
 
 
   
 
 
     
       
       
       Hi - I'm just putting the finishing touches on
 one of Jed's 367 boards - and in my efforts to remove
 the TC5514 chip with solder wick - i'm a bit worried
 I've cooked the poor thing (though I haven't fired
 it up yet - who knows what the long term effect will be on
 the patches - i hear SRAM is particularly sensitive to lots
 of factors).
 
 
 At any rate - my question is this - I just
 bought some replacement TC5514 chips online - but didn't
 notice that I got the AP3 version instead of APL3... does
 anyone know the difference? I can't seem to find any
 data sheets online from a valid source (just the usual spam
 sites)...
 
 
 
     
      
 
     
     
 
 
 
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