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

Javlin,

  >> but the SX28 is one pin short...!


hmm... 

The SX28 has 20 I/O pins - enough for similar projects I did in the past. If you need more free pins, you might consider using a multiplexer like the 74ACT138 which allows you to drive eight display segments by only three SX output pins.

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