In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:

Brian,

  I used this part from Digikey: SG-8002DC-SCB-ND
  I wanted the RoHS part, but it was out of stock.
  I paid $5.15 for 3 pcs. The prices goes down to $2.94 for 100. So they are not that expensive even in small quantities.

  For anyone using the SX-Key, try changing the timer R1 and R2 values in these lines:
  TIMER1 R1, 4560
  TIMER1 R2, 4560

  On my monitor is seems that 4561 works better than 4560, you might try 4559 too.

  I'd like suggestions for making this a product.
  I'm thinking of using a thru-hole SRAM and making a PCB that will piggyback onto the SX48 Protoboard. 
  And selling it as a kit.

Bean.

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