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 -----Original Message----- From: Dr. Imre Bartfai To: 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 tschŸ§: 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 > >