Guest jackyliu Posted September 24, 2002 Report Share Posted September 24, 2002 PIC16F877-20/L MCU CMOS 44 LD 20MHZ 8K FLASH $5.95 PIC16F877-20/P MCU CMOS 40 LD 20MHZ 8K FLASH $5.31 PIC16F877-20/PQ MCU CMOS 44 LD 20MHZ 8K FLASH $6.75 PIC16F877-20/PT MCU CMOS 44 LD 20MHZ 8K FLASH $7.17 PIC16F877-20I/L MCU CMOS 44 LD 20MHZ 8K FLASH $6.54 PIC16F877-20I/P MCU CMOS 40 LD 20MHZ 8K FLASH $5.84 PIC16F877-20I/PQ MCU CMOS 44 LD 20MHZ 8K FLASH $7.42 PIC16F877-20I/PT MCU CMOS 44 LD 20MHZ 8K FLASH $7.89 what's the difference?which one should I use to build my MIDI box? Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted September 24, 2002 Report Share Posted September 24, 2002 The one you need is second in your list16f877-20/P 20 mhzMan!! you guys pay very little for your pics.Ian Quote Link to comment Share on other sites More sharing options...
Captain_Hastings Posted September 24, 2002 Report Share Posted September 24, 2002 I used PIC16F877-20/P in two core modules and they seem to work fine.Apparently they're also the cheapest in your list but dunno the difference... Quote Link to comment Share on other sites More sharing options...
Guest jackyliu Posted September 24, 2002 Report Share Posted September 24, 2002 I got this list from microchip website. I'm in Beijing,China. Actually 20/p is the only one I can found..... ???I plan to build a MIDIbox Plus 8. Hope you guys can give me some advice and help. ;D Quote Link to comment Share on other sites More sharing options...
Ian_Hurlock Posted September 24, 2002 Report Share Posted September 24, 2002 Some adviceDon't start..........you won't be able to stop building the damn things !!!!!Go for ya life ! There's plenty of help on this forumGood luckIan Quote Link to comment Share on other sites More sharing options...
LO Posted September 24, 2002 Report Share Posted September 24, 2002 PIC16F877-20I/P works fine too!You may want to consider building the MBHP as this appears to be the one most people (?) are now building and therefore has the most support, new firmware & Development.You can just use 8 pots if that is all you need ;) Quote Link to comment Share on other sites More sharing options...
Guest jackyliu Posted September 25, 2002 Report Share Posted September 25, 2002 I'm new here.and dont know anything about MIDIbox......I decided to build a 8 pot first. If it works, I will build MBHP for a MIDIbox64. ;DThanks for your advice. You guys are very kind. ;) Quote Link to comment Share on other sites More sharing options...
Guest the_Swede Posted September 25, 2002 Report Share Posted September 25, 2002 There are really only two things to consider when buying the PIC:1) Get a 20MHz, i.e. ..F877-20/P instead of -04/P2) Get a DIP40, that is one that is socketable instead of SMD (surface mount) variants.The letters mostly stand for which temperature ranges the PIC can withstand (for military applications, for instance), so the cheapest one will surely do (or do you regularly control Pro-52 while on your weekly arctic expedition?)... Quote Link to comment Share on other sites More sharing options...
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