On Thu, 10 Dec 1998, Lester Wilson wrote:

> Hi,  I saw you entry on the PIC list
> 
> if you are interested in supplies of customisable Smart cards, we supply a
> whole range of cards & reader writer equipment.
> e.g 16F84 cards for £3.00 each
> and we have the 12C508 cards
> and we manufacture a special version of the 12C51x its not a true microchip
> part, it a 12C519 with EXTRA eeprom, up to 8Kbits !!
> 
> Lester Wilson
> Crownhill Associates Limited
> The Old Bakery
> New Barns Road
> Ely, Cambs.
> CB7 4PW
> Tel: +44 (0) 1353 666709
> Fax: +44 (0) 1353 666710

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> 
> -----Original Message-----
> From: Dr. Imre Bartfai <root@PROF.PMMF.HU>
> To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
> Date: 10 December 1998 14:58
> Subject: Re: 12c50x Smartcard
> 
> 
> Hi,
> yes, the question is o.k. There is another pin having a double
> functionality: it is RB6 during programming (so it conforms ISP), and it
> is CLKIN (!) when running. Sound ugly, but it is so... Silly, that there
> are a lot of N.C.-s. Furthermore, there is a Vss, a Vdd and a MCLR. I have
> objected, but you know the common answer: "if you do not like our product,
> you need not to use it!".
> 
> Regards and tsch٤: Imre
> 
> 
> 
> On Thu, 10 Dec 1998, Stefan Sczekalla-Waldschmidt wrote:
> 
> > Hello Imre,
> >
> > "Dr. Imre Bartfai" wrote:
> > >
> > > Hi,
> > >
> > > here (in Hungary) there is a supplier which sell a 16C84/16F84 based
> > > smartcard. There is a big disadvantage IMHO: an external clock must be
> > > provided (not only xtal but oscillator), and there is only ONE (!) I/O
> > > pin, and it is the RB.7. It is pretty expensive: about $12.
> >
> > How is it programmed ? I still think I need more then one Pin vor ISP ??
> >
> > Kind regards,
> >
> >         Stefan
> >
> >
> 
>