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

I've been itching to make a Kid's game Watch based on the SX48 for some time.

But there are some hurdles to be overcome, like 

1.  Can SX48 directly interface to a COG LCD display directly?  ( A very basic LCD glass without the HD44780  chipset)
Has anybody tried this before?  At 3volts ?  I heard from some sources that a small AC signal may be needed to directly control the LCD glass. 

2.  Since space is a major constraint, how to get rid of the 4 pin 0.1 inch programming header, yet make the SX reprogrammable?

3.  If the SX48 runs on a  32.768 KHz clock crystal, how long can a 3V Lithium Coin battery last?

Thanks.

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