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

Robert,

For a couple of customers we have produced 3.3-V BASIC Stamp chipsets using the SX28AC/SS. In fact, the MoBoStamppe runs at this voltage as well. The BASIC Stamp world tends to favor 5V and the requests for 3.3V are really not so common. My feeling is that 3.3V should only be supported on your module if it doesn't introduce substantial costs or extensive design modifications by the user. I bet that a few people will want to run it at 3.3V, but the vast majority would be happy with 5V. Sometimes you need to look at the cost/benefit ratio; just because you'll get a handful of requests doesn't necessarily mean you'll get additional sales that justify the expense (if there is one - I haven't read the thread in detail).

Ken Gracey
Parallax Inc.

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