EmbeddedRelated.com
Forums

How to: Decode NXP chip part number markings

Started by stevech11 June 28, 2009
ARM7 marked
LPC2106B CC8310 TRL041

How do I correlate that numbering to the numbers shown in the NXP OEM manuals for the 21xx? So that I can determine what user guide matches this CPU?

Thanks

An Engineer's Guide to the LPC2100 Series

--- In l..., "stevech11" wrote:
>
> ARM7 marked
> LPC2106B CC8310 TRL041
>
> How do I correlate that numbering to the numbers shown in the NXP OEM manuals for the 21xx? So that I can determine what user guide matches this CPU?
>

The errata sheets for the LPC2106 explain how to interpret the device identification:

http://www.standardics.nxp.com/support/documents/microcontrollers/?type=errata

--
Chris Burrows
CFB Software
Armaide v2.0: LPC2xxx Oberon-07 Development System
http://www.cfbsoftware.com/armaide

Thanks.
However, the marking is
LPC2106B
CC8310
TRL041

as three lines of text, on the chip-top.

Because the first line has no xxx suffix, and the others don't seem to match, I wonder if this chip pre-dates the establishment of the numbering system described in the errata.

--- In l..., "cfbsoftware1" wrote:
>
> --- In l..., "stevech11" wrote:
> >
> > ARM7 marked
> > LPC2106B CC8310 TRL041
> >
> > How do I correlate that numbering to the numbers shown in the NXP OEM manuals for the 21xx? So that I can determine what user guide matches this CPU?
> > The errata sheets for the LPC2106 explain how to interpret the device identification:
>
> http://www.standardics.nxp.com/support/documents/microcontrollers/?type=errata
>
> --
> Chris Burrows
> CFB Software
> Armaide v2.0: LPC2xxx Oberon-07 Development System
> http://www.cfbsoftware.com/armaide
>

--- In l..., "stevech11" wrote:
>
> Thanks.
> However, the marking is
> LPC2106B
> CC8310
> TRL041
>
> as three lines of text, on the chip-top.
>
> Because the first line has no xxx suffix, and the others don't seem to match, I wonder if this chip pre-dates the establishment of the numbering system described in the errata.
>

I agree that it is not 100% unambiguous. However, in your case I interpret the info as:

'xxx' is 'B' (no significance?)
Type is LPC2106 (not LPC2106/00 or LPC2106/01)
Year of manufacture is 2004.

However, the second digit of your week code and the revision code seem to be missing. Are you sure there aren't any other characters after TRL041? On one of my chips this is carried onto another line as there is not enough space to fit 'TPG0444C' on one line on the chip.

However, they do not appear to be consistent with leading zeros. I have another with 'TP411C'. As it can't be week one 2041 I assume it is week 11, 2004.

Maybe your sample is week 1, 2004 but that still doesn't explain the missing revision code. Post-christmas hangovers perhaps? ;-)

--
Chris Burrows
CFB Software
Armaide v2.0: LPC2xxx Oberon-07 Development System
http://www.cfbsoftware.com/armaide