Re: Low voltage hobbyist-accessible microcontrollers?

From: maxfoo (maxfoo_at_punkassSPAM.com)
Date: 08/29/04 

Date: Sun, 29 Aug 2004 15:45:59 GMT

On 29 Aug 2004 07:29:12 -0700, shoppa@trailing-edge.com (Tim Shoppa) wrote:

>In the perfect world there would be a flash-based microcontroller,
>serially programmable, that could run off a single cell (meaning 0.9V -
>1.8V or so).
>
>PIC16LF62x's go down to 2.0V (with some reasonable temperature limitations)
>and are very hobbyist-accessible. (OK, there are some minor points
>about verifying the flash at low voltage but those aren't biggies).
>2.0V is OK for two-cell operation, but I want better.
>
>The Fairchild ACE 1502 is good down to 1.8V, is serial EEPROM programmable,
>etc. Not nearly so much stuff floating around the 'net about using them.
>And they are still two-cell operation.
>
>The Winbond W541L200 looks good down to 1.2V, which is good enough for
>single-cell use (if still not ideal in terms of using the full discharge
>curve). But it's mask-ROM programmable only and a complete non-starter
>in terms of hobbyist tinkering.
>
>Is there anything obvious that I've missed out on?
>
>I may end up learning about single-cell-input voltage boosters instead of
>searching for more low voltage microcontrollers. The TI TPS61001 series
>looks good at a first glance, any alternatives?
>
>Tim.

Didn't say what you're trying to accomplice, so I'll suggest also looking at
1.8v xilinx cpld's to supplement the design in mind if you need to stay at the
voltage level...

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