| ??? 12/06/10 21:04 Read: times |
#179921 - Tired of hanging around with 5 mips Responding to: ???'s previous message |
Jan Waclawek said:
The whole 'LP line of Atmel appears to be heavily undermanaged, I wonder if it is a deliberate decision or simply incompetence or lack of motivation. Hi Jan, Yeah, I've been wondering that myself, however the real reason is that Atmel would look foolish if they introduced a hot '51, so they are dragging their feet when it comes to 8051, realistically they will never produce a 51 that is better than their AVR range. Jan Waclawek said:
However, there are more alternatives, also in DIP/PLCC (although not the "classical" 40-pin pinout). The NXP P89LPC9xx line features a 2-clocker running up to 18MHz which is roughly 2-2.5x more than what you can get out of the 'ED2 and kin. Farnell stocks several models also in DIP/PLCC, although so far not the newest 5V LPC98x/LPC97x models. Yes, Philips P89LPC range give 9 mips which is pretty good, however their are two attributes I don't like, the first is flash is limited to 8kbyte(or 16kbyte?) I want 64kbyte always, and secondly they are 3.6Vcc, I can work around the latter but why bother when you can have the ATmega644-20PU. I currently have a prototype LCR meter working on my bench, using the AT89C51ED2, code tally so far is 24.6kbyte. Incidently, does anyone here have any experiences prototyping with smd's?Can it be done? Cheers JA |
