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19058Re: ForcePowerAlwaysOn and IC equivalence

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  • mlsmith59
    Jun 19, 2007
    • 0 Attachment
      Just in case you don't know VCC is VDD and GND is VSS.

      --- In nslu2-linux@yahoogroups.com, "Mark Smith" <marksmith@...>
      wrote:
      >
      > The Dallas DS1233-10 should work fine for this. It has a different
      pinout
      > than the Microchip part I used in the wiki description so just be
      sure to
      > connect the correct pin to the appropriate points on the circuit
      board.
      > Check the two data sheets you referenced to determine which pin is
      which.
      > My picture is using the -D pinout which can be found at the top of
      sheet one
      > of the microchip data sheet.
      >
      >
      >
      > Mark
      >
      >
      >
      > _____
      >
      > From: nslu2-linux@yahoogroups.com [mailto:nslu2-
      linux@yahoogroups.com] On
      > Behalf Of Olivier Guilyardi
      > Sent: Tuesday, June 19, 2007 3:24 PM
      > To: nslu2-linux@yahoogroups.com
      > Subject: [nslu2-linux] ForcePowerAlwaysOn and IC equivalence
      >
      >
      >
      > Hi,
      >
      > We are trying to make a slug restart after power-loss. For this
      purpose we
      > want
      > to wire the "Alternative 1" as explained on:
      > http://www.nslu2- <http://www.nslu2-
      linux.org/wiki/HowTo/ForcePowerAlwaysOn>
      > linux.org/wiki/HowTo/ForcePowerAlwaysOn
      >
      > Unfortunately, the Microchip MCP120 component is rather hard to
      find here in
      > France (and our schedule forbids overseas ordering). But according
      to the
      > wiki
      > page the Dallas DS1233 is an equivalent, and we did find the DS1233-
      10 to be
      > available for fast delivery in France.
      >
      > According to the following references, the DS1233-10 seems similar
      to the
      > MCP120-450DI/TO:
      > http://ww1.microchi
      > <http://ww1.microchip.com/downloads/en/DeviceDoc/11184d.pdf>
      > p.com/downloads/en/DeviceDoc/11184d.pdf
      > http://docs-
      > <http://docs-
      europe.electrocomponents.com/webdocs/0025/0900766b80025c80.pdf>
      > europe.electrocomponents.com/webdocs/0025/0900766b80025c80.pdf
      >
      > But I'm no specialist of this kind of thing...
      >
      > Could anyone confirm that the DS1233-10 should be a good equivalent?
      >
      > Regards,
      >
      > --
      > Olivier
      >
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