Re: Need help to identify supervisor IC

On Sun, 05 Oct 2008 10:58:17 +1000 Franc Zabkar
<fzabkar@[EMAIL PROTECTED]
> wrote in Message id:
<284ge419rpa677hshuf3naj7htrqukhj6d@[EMAIL PROTECTED]
>:

>I'm trying to identify two 6-pin SMT supervisor ICs in a D-Link
>DSL-302G ADSL modem.
>
>They are U7 and U12, to the left of the Atmel EEPROM in this photo:
>http://www.users.on.net/~fzabkar/DSL-302G/Photos/Atmel_Viking.JPG
>
>The markings are ...
>     _ 
>  1KXW 
>    - 
>
>The pinouts appear to be as follows
>
> U7-1    NC (?)
>    2    ground
>    3    RST* to GS8120 CPU pin 53, VIA VT6103 pin 48, JP2-3
>          - pulled up to CPU Vcc by R51 (4K7)
>    4    CPU Vcc
>    5    NC (?)
>    6    CPU Vcc
>
>U12-1    NC (?)
>    2    ground
>    3    RST* to GS8120 CPU pin 68
>          - pulled up to CPU Vcc by R30 (4K7)
>    4    <-- R65 (3K0) --> ground
>    5    NC (?)
>    6    <-- R66 (4K7) --> unregulated 12VDC from bridge rectifier

I can't help you with identifying those parts, but with a few mods
(removing R65 for one) I bet you could use a couple of LM3724IM5-4.63
devices.