Andy,

One thing I don't understand is that the current consumption of the
Atmel and ST parts are given @ 20Mhz. In my application once per
second there may be a writing action, taking about 5ms to transfer the
data from PIC to memory chip.
Can I divide the given writing current consumption by the number
"20MHz/myclockspeed" ?  Or is it always 15mA during the time you need
to write the data? I guess it's the last one.

Daniel...

----- Original Message -----
From: "Andrew Warren" <aiw@CYPRESS.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, September 24, 2001 19:35
Subject: Re: [EE:] Power consumption EEPROMS or Flash memory


> D. Schouten <PICLIST@mitvma.mit.edu> wrote:
>
> > What I was noticing in the datasheets, was the relatively high
current
> > consumption of these parts reaching 15mA in write mode. Is this
normal
> > with Flash parts? If I look at the same parameter of a 256kb
EEPROM
> > chip from Microchip it is only 3mA. Since my application is
battery
> > powered I would like to store my data as power efficient as
possible.
>
> Daniel:
>
> You have to look at the TIME required to write to the memory, too;
if
> writes to the EEPROM take more than five times as long as writes to
the
> flash, the flash parts are more power-efficient.
>
> -Andy
>
> === Andrew Warren -- aiw@cypress.com
> === Principal Design Engineer
> === Cypress Semiconductor Corporation
> ===
> === Opinions expressed above do not
> === necessarily represent those of
> === Cypress Semiconductor Corporation
>
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