Gerald, thank you for distinguishing between real and non-real (divide by
-1?) part numbers and for explaining how google ("[p/n] datasheet") finds
datasheets :) But that doesn't answer my question.E.g. Y4 has three different part number options 1. ASDMB-24.576MHZ-LC-T (-40 to 85 C) 2. ECS-2033-24.576-B (-10 to 70 C) 3. ISM95-3161BH-24.576 (0 to 70 C) If I want to modify my BBB-C for operation down to -40 C do I replace Y4 or not? I don't know, because I don't know *which* Y4 is on the board. If no one knows (or you're not telling) what exact parts CircuitCo sent through the reflow oven, please just say so. Thats a fine answer. Sorry for the snark, but stating the obvious is discourteous and a waste of our time. On 19 November 2014 14:10, Michael Wood <[email protected]> wrote: > Gerald, thank you for distinguishing between real part numbers and > non-real part numbers (those divided by -1?) and for explaining how google > works ("[p/n] datasheet"). But that doesn't answer my question. > > E.g. Y4 has three different part number options > 1. ASDMB-24.576MHZ-LC-T (-40 to 85 C) > 2. ECS-2033-24.576-B (-10 to 70 C) > 3. ISM95-3161BH-24.576 (0 to 70 C). > > If I want to modify my BBB-C for operation down to -40 C do I replace Y4 > or not? I don't know, because I don't know *which* Y4 is on the board. If > no one knows (or you're not telling) what exact parts CircuitCo sent > through the reflow oven, then just say so. Thats a fine answer. > > Sorry for the snark, but stating the obvious is discourteous and a waste > of time. > > On 19 November 2014 13:35, Gerald Coley <[email protected]> wrote: > >> That is the BOM we publish. Those are the real part numbers. You need to >> go a look them up to find the datasheets. Every part number used was >> commercial grade. >> >> Gerald >> >> >> On Wed, Nov 19, 2014 at 8:39 AM, <[email protected]> wrote: >> >>> Gerald, can you point us to the *exact* BOM for BBB-C? We see a >>> *general* BOM on the wiki that lists a few different p/n's for many >>> designators (e.g. Y1), but each of those p/n's may have a different >>> temperature range. Makes it tough to know *which* parts are holding the >>> BBB-C back from (say) good low temp reliability. >>> >>> M >>> >>> On Tuesday, May 13, 2014 9:48:30 AM UTC-4, Gerald wrote: >>>> >>>> I don't know them off the top of my head. The BOM is available if you >>>> want to check the parts. >>>> >>>> Gerald >>>> >>>> >>>> On Tue, May 13, 2014 at 8:21 AM, <[email protected]> wrote: >>>> >>>>> Can you point out exact components which are rated below 70 degree? >>>>> >>>>> >>>>> On Tuesday, May 14, 2013 5:16:26 PM UTC+2, Gerald wrote: >>>>> >>>>>> 0 to 50 degrees C based on those other components. >>>>>> >>>>>> >>>>>> Gerald >>>>>> >>>>>> >>>>>> On Tue, May 14, 2013 at 9:56 AM, George Lu <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> I could not find in SRM discussion of the rated operating >>>>>>> temperature of the BBB as a whole. Is this information available >>>>>>> somewhere? >>>>>>> >>>>>>> In SRM Rev A5A I see that the AM3359 processor is rated for -40 to >>>>>>> 90 degrees C. Micro's page >>>>>>> <http://www.micron.com/parts/nand-flash/managed-nand/mtfc2gmtea-wt> >>>>>>> says mtfc2gmtea-wt is rated for -25 to 85 degrees C. I suppose there >>>>>>> might >>>>>>> be tighter constraints from other components. >>>>>>> >>>>>>> Thanks in advance! >>>>>>> >>>>>>> George >>>>>>> >>>>>>> -- >>>>>>> For more options, visit http://beagleboard.org/discuss >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "BeagleBoard" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> >>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Gerald >>>>>> >>>>>> [email protected] >>>>>> [email protected] >>>>>> http://beagleboard.org/ >>>>>> http://circuitco.com/support/ >>>>>> >>>>> -- >>>>> For more options, visit http://beagleboard.org/discuss >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "BeagleBoard" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> Gerald >> >> [email protected] >> http://beagleboard.org/ >> http://circuitco.com/support/ >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/p_DK-HE1Ds4/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
