----- Original Message ----- To: "Multiple recipients of list CHIPDIR-L" <[EMAIL PROTECTED]> Sent: Wednesday, February 18, 2004 6:59 PM
> On Wed, Feb 18, 2004 at 09:29:19AM -0800, Declan Moriarty wrote: > > On Tue, Feb 17, 2004 at 12:19:20PM -0800, Marko Pavlin (doma) > > enlightened us thusly > > > Hello, > > > > > > I am developing smart transmitter and need MCU with C51 core (have > > > keil dev. system) but with power consumption below 1mA/MIPS due to > > > extensive correction calculation. > > > > > > Is this impossible? Any other suggestions? > > > > If that's _all_ you are doing, you might find much better results from > > the 8pin or 16 pin uPs such as Atmel, Microchip, etc. That might cost > > you arithmetic instructions, however. > > World champion of low power is the MSP430 (www.ti.com/msp430), I think :-). > Runs at up to 8 MHz, with currents below 1mA. Free compiler ist the mspgcc. > > Matthias I know MSP430, but... OK, what about new LPC2100 from philips? It's ARM TDMI7 and draws 10mA at 50MHz core clk, at 1MHz would be 0,2mA, right? Or not? My calculation is sensor error correction with PWL method with n nodes, which requires n dimensional matrix multiplication. In case I wuold like 1000 rdgs/s I need about 700kIPS. All electronics except MCU (A/D, HART, sensor itself and 4...20mA D/A) runs on 2,4mA. I have 1,2mA for MCU to have 2-wire transducer. Marko -- Author: Marko Pavlin (doma) INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
