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Hello.
I'm doing another instructable, this time, LED clock. I'm using PIC16F886, because code is not well optimized yet, so it takes about 6K of memory. I will slim it down, but I'm afraid it won't fit into most common 16F628A. Which is another popular chip, like 628A, but with more memory, 4K at least? Preferably, with internal oscillator, to reduce external part count.
May I suggest you look at the PIC18F2_46K22 family. It's new enough it sports many features and fairly generous memory, yet old enough that most versions of PBP can work with it.
Sorry I was unclear.
The most common I meant - easiest to find and cheapest to buy.
I'm asking because when I built my nixie clock using PIC16F1519, many many people asked, whenever I can port code to PIC16F887, because it is much easier to buy than 1519.
P.S. I've slimmed down my code to 2106 bytes :D Maybe I'll fit it into 16F628A :)
Have a look at 16F1827. Same pin count, double memory but many more features and a new (relatively) chip which is less expensive too.
The 628a is ancient ... With 1827 new ideas will come to your mind exploiting the features of the chip like touch, many timers or the bat voltage check with NO extra input ADC!
Ioannis
Yes I'm looking for ancient chip, but with more memory.
P.S. Another 40 bytes went away :D slimming down code even further.
a look to 16F648 ???
nothing to change in the S/W ...
Alain
Is it common? I mean, can 3rd world/developing countries users get it with ease?
p.s. I've kicked out alarm functionality and code now fits into 16F628A :)
could that be what you mean ???
https://fr.aliexpress.com/popular/16f648a.html
Alain
I would not trust the chips sold by those sites. Most probably they are de-soldered from pcbs, tined and maybe remarked too so that they look brand new.
Ioannis
Yeah they are desoldered chips. I have bought 16F886 from taobao. Pack of 10 costed about $7 maybe. There all were 2nd hand, some even had some firmware in it and fuses set :D But they all work just fine so far. I'm using them during prototyping or not important projects. Genuine ones I buy at digikey.com
I just answer the question as it is asked ... :DQuote:
Originally Posted by CuriousOne
... for my own use, chips come from Conrad, Reichelt, RS, Farnell or other well known sellers ... :rolleyes:
Alain