Re: TI-H: PIC16F84


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Re: TI-H: PIC16F84




I just got this of the PicList:

It states that the F part isn't flash

>Yesterday I was at the MC Seminar in Cape Town
>One other interesting thing the presenter mentioned, was that the so
>called Flash 16F8x is in fact still EEPROM.  The name change to Flash was
>simply a marketing thing.  With large memory arrays, Flash is cheaper and
>therefore when people hear 'Flash', they think 'cheaper'.  Furthermore,
>to counter the release of a family of 'Flash' parts by a certain company
>(A***l), MC had to follow suit.  In reality, a Flash cell is smaller than
>an EEPROM cell, but the peripheral circuitry to drive these cells is
>larger for Flash.  Therefore, for small memory arrays, you would need
>more silicon for Flash than for EEPROM - and silicon is money.  This
>change also gave them the opportunity to change a few small things - like
>a code protection scheme with a bad reputation ( The *official* line here
>was : Microchip changed the code protection scheme. )
>
>We got some nice databooks and the 2nd edition of the 1997 CDROM - And
>also a very nice lunch!
>
>Niki
>
-----Original Message-----
From: Gustav Strandberg <guzzie@hem1.passagen.se>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: 20. mars 1998 14:33
Subject: Re: TI-H: PIC16F84



>The Pic 16F84 is a flash-microcontroller and can be >reprogrammed many
>times!
>
> DigiKey (www.digikey.com) sells most PIC microcontrollers in both the OTP
> (one-time programmable) and the windowed EPROM styles. The OTP style is
> less expensive because it does not require additional stuff to make it
> eraseable. These are usually under $5, I think. The EPROM version, which
> is eraseable, tend to be more.. $10 to $20, I think. But when you're doing
> development, you would save a lot of money by getting the eraseable kind.
>
> If the source code is currently available, I should be able to program one
> of those for you.. I'll need to check to make sure my programmer supports
> that one.
>
> --
> Greg Hill
> greg-hill@bigfoot.com
> www.comports.com/link
>
>
>