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'[EE] UART with built-in rs232 drivers'
2006\04\26@020604 by William Chops Westfield

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Remember a while ago when we were talking about whether there
was likely to be a uart (or microcontroller) with built-in
rs232 drivers?  Well, guess what Exar just announced:

http://www.exar.com/new.php?newsID=272

BillW

2006\04\26@075917 by M. Adam Davis

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Maxim has such a beast, the MAX3110 and 3111:
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2052

SPI UART with RS-232 transceiver, and built in charge pump that uses
no external caps.

Of course, they are expensive ($4.75 @1k) and don't seem to be
available as RoHS compliant.

-Adam


On 4/26/06, William Chops Westfield <spam_OUTwestfwTakeThisOuTspammac.com> wrote:
> Remember a while ago when we were talking about whether there
> was likely to be a uart (or microcontroller) with built-in
> rs232 drivers?  Well, guess what Exar just announced:
>
> http://www.exar.com/new.php?newsID=272
>
> BillW
> -

2006\04\26@083637 by Alan B. Pearce

face picon face
>Maxim has such a beast, the MAX3110 and 3111:
> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2052
>
>SPI UART with RS-232 transceiver, and built
>in charge pump that uses no external caps.
>
>Of course, they are expensive ($4.75 @1k) and
>don't seem to be available as RoHS compliant.

With those charge pumps, it is probably as EMC unfriendly as their MAX232
devices that don't need charge pumps (cannot remember their exact part
number).

2006\04\26@094256 by David VanHorn

picon face
>
> With those charge pumps, it is probably as EMC unfriendly as their MAX232
> devices that don't need charge pumps (cannot remember their exact part
> number).


I used the 3110s once.  It's all that and more.
If I need multiple serial ports again, I'm going to use AVRs for them.

Those charge pumps are not all that nice, and I'd far rather have a single
switcher than eight charge pumps banging away.

--
> Feel the power of the dark side!  Atmel AVR

2006\04\26@131324 by Bob Axtell

face picon face
William Chops Westfield wrote:
> Remember a while ago when we were talking about whether there
> was likely to be a uart (or microcontroller) with built-in
> rs232 drivers?  Well, guess what Exar just announced:
>
> http://www.exar.com/new.php?newsID=272
>
> BillW
>  
Maxim has one....for what it is worth.

--Bob

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