On Sat, May 25, 2013 at 09:26:02PM -0400, Bob Camp wrote: > Hi > I realize this is a bit like water torture - sorry about that.
> If I go to Microchip Direct and ask for a PIC 18F with two > UARTS and two A/D's I get the PIC18F86J72 and PIC 18F87J72. > To me the second one is the obvious winner. It's got twice > the flash for next to nothing more money. 1-25 piece price is > $6.04. > Same search, 1 A/D, 4 UARTS, lowest cost this time. PIC18F65J94 > is the winner. Lowest price package is $3.30 in 1-25 pieces. 4 UARTS are untypical for PICs and result in higher price as the device usually has more pins (which makes them more expensive) > Are those some *very* arbitrary choices - you bet they are. > They are random picks, and were not optimized to show any > particular thing. Only to target an application that had some > serial i/o and a bit of A/D involvement. > Bottom line - not all PIC's are $1. once you start adding > peripherals. For $6 over in ARM land, you can get a lot of > chip. To be fair, my experience has been that you can do better > in the PIC24 line once you start adding stuff. Searching the > PIC24's is hard enough that my brief search tonight did not > show up a lower cost part. PIC24F04KA200 1 UART, 10 ADC, XLP, 1.38 USD (1.05 USD @1k) PIC24EP32GP202 2 UART, 6 ADC, 2.76 USD (1.86 USD @1k) One (dis)advantage of the Microchip PICs is that there are so many different families and parts. best, Herbert > Bob > On May 25, 2013, at 9:05 PM, Bob Camp <[email protected]> wrote: >> Hi >> I just realized the "buy direct" button on that page requires a login. The >> single piece direct price is $9.70. First price break is at 25 pieces (to >> $8.95). >> Bob >> On May 25, 2013, at 8:56 PM, Bob Camp <[email protected]> wrote: >>> Hi >>> It's one of the Freescale K60's they have them in several speeds and >>> packages. Others have similar parts. >>> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=K60_120&nodeId=01624698C9DE2DDDAF&tab=Buy_Parametric_Tab&fromSearch=false >>> hopefully shows the family information >>> The first part on the list is the MK60FN1M0VLQ12 for 8% more money you can >>> get the 150 MHz core rather than the 120 MHz core version. Both have enough >>> pins that you can get at a lot of the peripherals at once. Both have enough >>> pins that they are not a lot of fun to solder by hand. Of course their BGA >>> cousins are even less hand solder friendly…. >>> Bob >>> On May 25, 2013, at 6:48 PM, Graham / KE9H <[email protected]> wrote: >>>> On 5/25/2013 3:40 PM, Bob Camp wrote: >>>>> You can get a part with 1MB of flash, 128KB of ram, 6 UARTS, 4 16 bit >>>>> A/D's, 10/100 Ethernet, USB, and a bunch of other stuff for less than >>>>> $10. Drop this and that, go to half the flash, and yup, the price is 1/2. >>>>> Comes with a free toolchain and two very capable free versions of RTOS. >>>> Bob: >>>> I was wondering which manufacturer/part you were referring to. >>>> Thanks, >>>> --- Graham >>>> == >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
