'PIC16F877 Rev marking?'
I«m uncertain how/where to read the revision
I have some DIL40 marked
and some PLCC
First I thought the first one is rev B ("BSL" after date code)
But then I see on the PLCC "SBN" after date code.
Still a B involved, but in another position...
Looks like S revision...
Or is the characters after the date just manufacturing lot etc, and theese are not 'A* nor B revisions, but bug free (supposedlu) ones?
Thanks in advance
Morgan Olsson wrote:
> I«m uncertain how/where to read the revision
> I have some DIL40 marked
> and some PLCC
99 = year
25 = week code (week of january 1 is week 01)
S = 6 inch wafer line
B = Mask revision number
N = Assembly code of the manufacturing plant.
These markings are explained on page 179 of the 16F8XX data sheet.
Unless you (or Microchip) made a mistake, they don't match your F877
code, unless you change the BSL to SBL.
Tony Nixon wrote:
>Unless you (or Microchip) made a mistake, they don't match your F877
>code, unless you change the BSL to SBL.
Strange, the DIL40 really reads "BSL"
As revision S is not here yet..., I believe Microchip did wrong marking, and it should be SBL.
> >Unless you (or Microchip) made a mistake, they don't match your F877
> >code, unless you change the BSL to SBL.
> Strange, the DIL40 really reads "BSL"
> As revision S is not here yet..., I believe Microchip did wrong marking, and i
t should be SBL.
I'll back you up. I have a couple of 16F877 devices in Plastic 40 Pin
DIP. I wondered the same thing . . .
One has 9936SBW and the other 9924BSL in a larger bolder print.
(I got this one (BSL) from a batch from Newfound Electronics)
On Tue, 23 Nov 1999 09:45:54 +0100, Morgan Olsson wrote:
should be SBL.
I have a pair of PIC that must be at mask rev H.
parts have on them:
Others have the follwing and must be mask rev 3.
I also have some 874's with
These, unfortunately, look like Rev B parts!
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