What are the markings on the part??? That's what I look at when I determine what parts are installed.
You may have to dig through all the data sheets on all the allowable parts in the BOM for that part to find what you want, but you are the one that wants to change things, you need to do the due diligence. -david . On Wed, Nov 19, 2014 at 1:16 PM, Michael Wood <[email protected]> wrote: > 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. > -- 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.
