Amazing, I had no idea there were so many with that "I'm not a 555
timer" pinout!

On Mon, Dec 7, 2015, at 09:20 AM, William Bross wrote:
> NXP P89LPC series, TI MSP430G22 series,  ST ST7LITEU series, Zilog=20
> Z8F0xxA series all match your VDD, Gnd pin config in addition to
> Microchip.
>=20
> Bill
>=20
> On 12/6/2015 8:55 PM, Bob Blick wrote:
> > I'm reverse engineering this candy dispenser in order to improve it:
> >
> > http://www.bedbathandbeyond.com/store/product/sharper-image-reg-motion-=
activated-candy-dispenser/204589
> >
> > I'm using it as an indoor cat feeder, filled with kibble. It actually
> > works pretty well out of the box. It only took a couple of days to teac=
h
> > the target cat to use it.
> >
> > It's got a small PC board with discrete phototransistor and IR LED(set
> > up as a reflective sensor), micropower 3.3V regulator, LM393 dual
> > comparator, three transistors, assorted R's and C's, and an 8 pin SOIC
> > with no markings.
> >
> > The mystery chiip has ground on pin 8 and +3.3 on pin 1. So my first
> > guess is a PIC12F508 or some other 8 pin PIC. But are there any other 8
> > pin chips with power and ground in that configuration?
> >
> > Thanks, Bob

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