Similar to one of the reasons why MChip doesn't add more memory and flash, a lot of it is due to the process. Really cheap flash and SRAM are best made with a semiconductor manufacturing process that's slightly different. Same with the Brownout, only, perhaps, more so due to the analog requirements. It takes up a lot more space and is a bit trickier to manufacture well and cheaply (ie, higher failure rate or tighter process controls, either way it's more expensive). Even without brownout there are many applications for the 10f, and those products that they fit well in wouldn't do well with the additional (small per chip, but large over a million chips) cost. There is also a market segmentation aspect - just as Ford resisted putting the high end comfort features in their low end cars (focus can't have heated seats, for instance) every company attempts to force consumers up the chain to more profitable products for specific features. Usually there's a company that comes in the fill the niche (small volvos can have heated seats, but that's because Europeans demand high end small cars), but Microchip is protecting itself with patents as well. And on , and on, and on. -Adam On Sat, Dec 6, 2008 at 10:42 AM, apptech wrote: > Amen. Alas, lack of 100% effective brownout reset is the death knell of many > lower end processors. It's an utterly essential requirement in battery > opertation as Bob says, and very very desirable in any situation. Why people > don't add it as of right is hard to understand - except perhaps that it's > ratheer hard to do well and adds more to the cost than may be apparent. -- Please rate and vote for my contest entry: http://mypic32.com/web/guest/profiles?profileID=50331 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist