$1.36 in the quantities he is talking about if this makes it to production. Atmel prices their product pretty darn reasonable if you ask me.
The whole concept of buying max72xx now makes zero sense to me.Those guys go out of the market for a (very good) reason.
It is available on 24-pin wide SO surface mount package - its just a little thicker than you wanted.Or as bare die if you wanted it really thin.
It's too bad they didn't make one of the MAX72xx's in a smaller package...
Another advantage might be interface speed.MAX7219/7221 can receive data at 10 MHz. I use mine at default SPI settings which I think is 4 MHz.If your main processor was really tied up and you wanted to send stuff out at 8 MHz to get it out of the way quick. The master can do that, I think testing has has shown a 168/328 cannot receive that fast tho due to the slave having to sample (the CS pin?) or something along those lines.
a 168/328 cannot receive that fast tho due to the slave having to sample (the CS pin?)
True, when implemented poorly."