Hi,

I must correct you: ICSP has also its advantage with OTP chips: u can
e. g. make a SMD circuit and put an unprogrammed PIC into. Then, using
ICSP, program it. Disadvantage: ICSP has some challenges regarding the
circuit. Advantage: u do not need to buy an expensive socket for the SMD
circuit.

Imre

On Thu, 8 Nov 2001, Byron A Jeff wrote:

> On Thu, Nov 08, 2001 at 10:43:31PM +1300, Andrew Hooper wrote:
> > Is anyone aware of either and in circut 16C54C programmer or
> > a simple and cheap programmer similar to what was avalible for
> > the 16C/F84's
>
> Not a chance. The original 16C5X series of chips have several programming
> issues:
>
> 1) They only have a parallel programming interface that requires 12 of the 13
> available I/O pins.
>
> 2) They are EPROM based, which makes them OTP, or requiring removal with the
> windowed versions.
>
> In circuit works for serial interfaced FLASH based parts because they eliminate
> these issues.
>
> Now having addressed the question, can you tell us why you need to use the
> 16C54C? You can replace it with a 16F628 (cheaper) or a 16F84[A] and have
> a simple ICSP interface for development.
>
> Parts like the 16C54C and the 16C505 are better utilized in large scale
> production of finished product because of their sub $1 US price in quantity.
>
> But they certainly are not the right part for ICSP.
>
> Hope this helps,
>
> BAJ
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>
>

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics