Searching \ for '[PIC] EEPROM endurance' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/memory.htm?key=eeprom
Search entire site for: 'EEPROM endurance'.

Exact match. Not showing close matches.
PICList Thread
'[PIC] EEPROM endurance'
2005\06\06@113847 by PicDude

flavicon
face
Param D120 of the 16F877 datasheet says that the *minimum* data EEPROM write
cycles is 100k, but the same param on the Mid-range MCU reference manual says
it's 1M cycles.  Anyone know what's correct?

Can't lookup much else on it right now, since Microchip's website is down for
maintenance until Tuesday.

FWIW, I have a 16F628 app that I'm porting to an F874 or F877, and this spec
will make a big difference to it.  The spec on the F877A datasheet (which I
just picked up from Digikey's site) also states 100k, but that has "ADVANCE
INFORMATION" plastered across the page still, so I'm guessing it's old.


Cheers,
-Neil.


2005\06\06@114657 by Mike Hord

picon face
> Param D120 of the 16F877 datasheet says that the *minimum* data EEPROM write
> cycles is 100k, but the same param on the Mid-range MCU reference manual says
> it's 1M cycles.  Anyone know what's correct?

I'm confused.  Are you going 628->877 or 877A?

At any rate, go by the datasheet for the part you are using, NOT
the MRRM.  And check the errata for that part, too; errata covers
not only silicon but updates to the user's manual to clarify or
correct points provided therein between full-scale datasheet
updates.

Mike H.

2005\06\06@120013 by PicDude

flavicon
face
On Monday 06 June 2005 10:46 am, Mike Hord scribbled:
> I'm confused.  Are you going 628->877 or 877A?

877 was original thought, but I checked 877A to see if it might've been
better.  But can't trust that the datasheet I found was up-to-date since it
had the "advance info" over it.


> At any rate, go by the datasheet for the part you are using, NOT
> the MRRM.  And check the errata for that part, too; errata covers
> not only silicon but updates to the user's manual to clarify or
> correct points provided therein between full-scale datasheet
> updates.

Yep -- I was hoping to get the latest errata from Mchip's site, but can't now,
so hoping someone here might've had it, or knew otherwise.

Cheers,
-Neil.

>
> Mike H.


2005\06\06@120842 by Wouter van Ooijen

face picon face
> > Param D120 of the 16F877 datasheet says that the *minimum*
> data EEPROM write
> > cycles is 100k, but the same param on the Mid-range MCU
> reference manual says
> > it's 1M cycles.  Anyone know what's correct?
>
> I'm confused.  Are you going 628->877 or 877A?
>
> At any rate, go by the datasheet for the part you are using, NOT
> the MRRM.  And check the errata for that part, too; errata covers
> not only silicon but updates to the user's manual to clarify or
> correct points provided therein between full-scale datasheet
> updates.

And unless you care only for your 'typical' customer forget all
'typical' figures :(

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


More... (looser matching)
- Last day of these posts
- In 2005 , 2006 only
- Today
- New search...