On Thu, Jun 03, 2010 at 07:31:41AM -0400, Olin Lathrop wrote:
> Xiao Xu wrote:
> > I ordered some *16F84A* microchips from a website,
> 
> Newbie alert.
> 
> That is a really outdated chip.  Several PICs do more, cost less, and come
> in the same footprint.  Some examples off the top of my head are 16F88,
> 16F648A.

Even better are the extended 16F chips. For example the 16F1827 comes in
the 18 pin package, can run up to 32 Mhz on an internal oscillator, has 4
times the memory, up to 3 extra I/O pins, all the periperals, and literally
clocks in at 1/3 the price of a 16F84A.

And I'm waiting for the 8 pin 12F1822 to come on line. 2K of program
memory, 128 bytes of ram, hardware USART and SPI/I2C (both of which can
operate at the same time), internal oscillator that runs up to 32 Mhz, all
in a 8 pin package that's $1 each in quantity.

With Microchip, it's always best to look at their newest offerings. Unlike
most companies, which charge a premium for their new shiny stuff, Mchip has
been consistent over the years in offering much more for much less.

BAJ
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