Differences betwen PIC16F84 and PIC16F84A

Started by Mohammad Ibnu Malik April 15, 2003
Dear Groups
Please explain to me, what's the deference(s) between
PIC16F84 and PIC16F84A ?

Regards

Malik

__________________________________________________




The A parts are a new CMOS version, and are cheaper to mfr., and therefore
cheaper to buy. They also have a different programming requirement...and my
expereince with the '876 parts is that the A versions program significantly
faster with fewer errors.

FWIW, if you are looking into either of these chips, I would recommend a
different chip all together. I think it's the '672, but I'm probably
wrong...either way, there's a new one out that's cheaper, and has more
features. (More memory, at the least.) I haven't memorized the part number
because I haven't been working with projects simple enough for them.

Cliff
----- Original Message -----
From: "Mohammad Ibnu Malik" <>
To: <>
Sent: Monday, April 14, 2003 6:16 PM
Subject: [piclist] Differences betwen PIC16F84 and PIC16F84A > Dear Groups
> Please explain to me, what's the deference(s) between
> PIC16F84 and PIC16F84A ?
>
> Regards
>
> Malik
>
> __________________________________________________ > to unsubscribe, go to http://www.yahoogroups.com and follow the
instructions
>
> ">http://docs.yahoo.com/info/terms/ >


The replacement part Cliff is thinking of is the 16F628, which is pin compatible with the 16F84, but adds more peripherials, can run without a xtal or RC, adds a USART, supports ICSP, and cost about half the price of the 16F84.
----- Original Message -----
From: Cliff Griffin
To: p...@yahoogroups.com
Sent: Monday, April 14, 2003 8:23 PM
Subject: Re: [piclist] Differences betwen PIC16F84 and PIC16F84A

The A parts are a new CMOS version, and are cheaper to mfr., and therefore
cheaper to buy. They also have a different programming requirement...and my
expereince with the '876 parts is that the A versions program significantly
faster with fewer errors.

FWIW, if you are looking into either of these chips, I would recommend a
different chip all together. I think it's the '672, but I'm probably
wrong...either way, there's a new one out that's cheaper, and has more
features. (More memory, at the least.) I haven't memorized the part number
because I haven't been working with projects simple enough for them.

Cliff
----- Original Message -----
From: "Mohammad Ibnu Malik" <a...@yahoo.com>
To: <p...@yahoogroups.com>
Sent: Monday, April 14, 2003 6:16 PM
Subject: [piclist] Differences betwen PIC16F84 and PIC16F84A> Dear Groups
> Please explain to me, what's the deference(s) between
> PIC16F84 and PIC16F84A ?
>
> Regards
>
> Malik
>
> __________________________________________________> to unsubscribe, go to http://www.yahoogroups.com and follow the
instructions
>
> ">http://docs.yahoo.com/info/terms/


to unsubscribe, go to http://www.yahoogroups.com and follow the instructions

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> Please explain to me, what's the deference(s) between
> PIC16F84 and PIC16F84A ?

http://www.microchip.com/1010/pline/picmicro/category/digictrl/8kbytes/d
evices/16f84a/index.htm

document: 16F84 to 16F84A migration

But forget about both, there are newer chips that are both better and
cheaper (for instance 16FF628).

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products