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PICList Thread
'[BUY] FT2232 or MAX3420 or any other USB to SPI dr'
2009\03\16@181115 by solarwind

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Hey all, if there is anyone in Canada willing to sell an FT2232 or
MAX3420 chip, I would really appreciate it. Or, anything else that can
do USB to SPI would also be fine. At the very lease, if anyone is
willing to sell a USB to UART, I would still appreciate it.

--
solarwind

2009\03\16@190057 by Peter Loron

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On Mar 16, 2009, at 3:11 PM, solarwind wrote:

> Hey all, if there is anyone in Canada willing to sell an FT2232 or
> MAX3420 chip, I would really appreciate it. Or, anything else that can
> do USB to SPI would also be fine. At the very lease, if anyone is
> willing to sell a USB to UART, I would still appreciate it.
>
> --  
> solarwind

I have some FT232RL chips that may do what you need. $3 each +  
shipping. Let me know.

-Pete

2009\03\16@190845 by solarwind

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Also, are they in DIP packages?

2009\03\16@191405 by solarwind

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On Mon, Mar 16, 2009 at 6:00 PM, Peter Loron <spam_OUTpeterlTakeThisOuTspamstandingwave.org> wrote:
> I have some FT232RL chips that may do what you need. $3 each +
> shipping. Let me know.

Do you live in Canada? I am interested.

2009\03\16@201001 by Vitaliy

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solarwind wrote:
> Also, are they in DIP packages?

Try to get in the habit of reading datasheets, it really isn't that hard.

No, FT2232 is not available in a DIP package, and neither is the FT2232.

Vitaliy

2009\03\16@201034 by Peter Loron

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On Mar 16, 2009, at 4:08 PM, solarwind wrote:

> Also, are they in DIP packages?

No, they're surface-mount.

A quick check of the part number on Octopart or Digi-Key would have  
told you that:

http://octopart.com/search?q=ft232rl

-Pete

2009\03\16@201117 by Peter Loron

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On Mar 16, 2009, at 4:08 PM, solarwind wrote:

> On Mon, Mar 16, 2009 at 6:00 PM, Peter Loron  
> <.....peterlKILLspamspam@spam@standingwave.org> wrote:
>> I have some FT232RL chips that may do what you need. $3 each +
>> shipping. Let me know.
>
> Do you live in Canada? I am interested.

No, I'm in the US, but for a small number of items like this sent via  
USPS Priority Mail, it should be < $6.

-Pete

2009\03\16@201753 by Carlos Marcano

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>From the datasheet:

"FT232RL-xxxx   -->  28 Pin SSOP"

Regards,

Carlos.

2009/3/16 solarwind <x.solarwind.xspamKILLspamgmail.com>:
> Also, are they in DIP packages?
> -

2009\03\16@203949 by solarwind

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On Mon, Mar 16, 2009 at 8:11 PM, Peter Loron <.....peterlKILLspamspam.....standingwave.org> wrote:
> No, I'm in the US, but for a small number of items like this sent via
> USPS Priority Mail, it should be < $6.

Damnit. I was hoping you would be in Canada because I don't want to
pay duties. Also, damnit because they're only SSOP. Would it kill them
to make DIP?

--
solarwind

2009\03\16@204028 by solarwind

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Ok, do you have any SSOP to DIP adapters?

2009\03\17@033723 by William \Chops\ Westfield

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On Mar 16, 2009, at 5:39 PM, solarwind wrote:

> Damnit. I was hoping you would be in Canada because I don't want to
> pay duties. Also, damnit because they're only SSOP. Would it kill them
> to make DIP?

HVW Technologies, the sort-of "microcontroller" division of  
Solarbotics, sells the FTDI chip, as well as several "breakout board"  
type devices that should meet your needs.  And they're in Canada.  And  
they're (both) well established companies with good reputations  
(though not the cheapest in the world...)

http://www.hvwtech.com/products_list.asp?CatID=166&SubCatID=183

BillW

2009\03\17@042806 by Mike Harrison

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On Tue, 17 Mar 2009 00:37:20 -0700, you wrote:

>
>On Mar 16, 2009, at 5:39 PM, solarwind wrote:
>
>> Damnit. I was hoping you would be in Canada because I don't want to
>> pay duties. Also, damnit because they're only SSOP. Would it kill them
>> to make DIP?

Yes it would kill them as nobody uses DIP in volume for this sort of thing. Anyone who can't solder
a SSOP isn't going to be a volume customer.

FTDI do make DIP eval modules for most of their devices :
http://apple.clickandbuild.com/cnb/shop/ftdichip?op=catalogue-products-null&prodCategoryID=3&title=DIP+Modules


2009\03\17@054709 by cdb

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:: Also, damnit because they're only SSOP

With a small amount of practice, it is not that hard to hand solder
SOIC or SSOP.

Tools - preferably a ' hoof ' bit - these have a little well on the
underside and a small reservoir of solder gets capillaried into it -
but an ordinary small /fine flat bit will work.

Some form of lighting and a magnifying glass - depends on your
eyesight, lighting with no shadows most important. Fine solder 0.6mm
or less.

The hobby way of doing this would be to make sure the pads on the PCB
are clean and swipe a then even layer of solder over one each of pins
on opposite of each other. In other words pad one and pad 14 if that
is top left and bottom right, carefully place chip on pads, make sure
the bit has plenty of solder on it, apply gentle pressure to top of
chip (making sure it doesn't move) then  dab gently the iron onto one
of the pads prepared above, once done do the other pad. Then at
leisure solder the rest of the pads - might be an idea to alternate
the sides that you are soldering to let the joint cool down a bit.

If you are lucky and can find someone who can let you have some nice
jelly flux (hard to get these days Farnell still have some, NOT
plumbers jelly flux), squirt it over the pads (it uses a syringe)  be
quite liberal, then if you've a hoof bit, ply it with solder and then
you can just drag the bit down the pins, the flux will help keep the
chip in place and cause the solder to only run onto the pin and pad.

As they say in the west country 'Job Done! '. You may also need narrow
desoldering braid, just to tidy up small solder whiskers - magnifying
glass/lamp/microscope of benefit here.

It wouldn't pass class 3 soldering work, but that won't be a problem
for you.

Colin
--
cdb, EraseMEcolinspam_OUTspamTakeThisOuTbtech-online.co.uk on 17/03/2009

Web presence: http://www.btech-online.co.uk  

Hosted by:  http://www.1and1.co.uk/?k_id=7988359







2009\03\17@055852 by Rikard Bosnjakovic

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On Tue, Mar 17, 2009 at 10:46, cdb <colinspamspam_OUTbtech-online.co.uk> wrote:

> With a small amount of practice, it is not that hard to hand solder
> SOIC or SSOP.

While at it, this guide is an excellent resource for surface soldering:

http://www.curiousinventor.com/guides/Surface_Mount_Soldering/101


--
- Rikard - http://bos.hack.org/cv/

2009\03\17@065109 by Vitaliy

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cdb wrote:
> If you are lucky and can find someone who can let you have some nice
> jelly flux (hard to get these days Farnell still have some, NOT
> plumbers jelly flux), squirt it over the pads (it uses a syringe)  be
> quite liberal, then if you've a hoof bit, ply it with solder and then
> you can just drag the bit down the pins, the flux will help keep the
> chip in place and cause the solder to only run onto the pin and pad.
>
> As they say in the west country 'Job Done! '. You may also need narrow
> desoldering braid, just to tidy up small solder whiskers - magnifying
> glass/lamp/microscope of benefit here.
>
> It wouldn't pass class 3 soldering work, but that won't be a problem
> for you.

A colleague likes to use the hot air gun for soldering SMDs, then he cleans
up the solder bridges with a solder wick. The speed with which he can
replace a 60-pin PIC, is amazing.

Solder paste is the way to go for soldering fine-pitch SMDs.

Vitaliy

2009\03\17@065550 by Byron Jeff

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On Tue, Mar 17, 2009 at 05:58:51AM -0400, Rikard Bosnjakovic wrote:
> On Tue, Mar 17, 2009 at 10:46, cdb <@spam@colinKILLspamspambtech-online.co.uk> wrote:
>
> > With a small amount of practice, it is not that hard to hand solder
> > SOIC or SSOP.
>
> While at it, this guide is an excellent resource for surface soldering:
>
> http://www.curiousinventor.com/guides/Surface_Mount_Soldering/101

And of course there is the infamous SparkFun skillet tutorial that also
discusses other techniques such as hand soldering and using a reflow oven:

http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=59

For the hobbyist, the skillet looks like a winner.

BAJ

2009\03\17@082128 by olin piclist

face picon face
solarwind wrote:
> At the very lease, if anyone is
> willing to sell a USB to UART, I would still appreciate it.

These things are widely available off the shelf.  Around here in every Radio
Shack and most office supply places carry them.


********************************************************************
Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
(978) 742-9014.  Gold level PIC consultants since 2000.

2009\03\17@082629 by olin piclist

face picon face
solarwind wrote:
> I was hoping you would be in Canada because I don't want to
> pay duties.

Where exactly in Canada are you?

> Would it kill them to make DIP?

Maybe.  They would certainly loose money doing that.  Think about it.  Other
than selling a few one-offs to hobbyists, who do you imagine would buy the
DIP version?


********************************************************************
Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products
(978) 742-9014.  Gold level PIC consultants since 2000.

2009\03\17@094015 by M. Adam Davis

face picon face
Have you considered simply buying a USB<-->RS232 cable, and removing
the level converter chip?  Alternately, buy a cable that has the chip
in a USB cable with TTL outputs (3.3v or 5v I/O cables available) on a
0.1" header:

http://www.ftdichip.com/Products/EvaluationKits/TTL-232R.htm

Which can be purchased from Future Electronics (in Canada):
http://www.futureelectronics.com/en/Search.aspx?dsNav=Ntk:PartNumberSearch|ttl%2f-232r|1|,Ny:True,Nea:True

If that link doesn't work, go to http://www.futureelectronics.com/ and
search for "ttl-232r"

Of course, Future sells most of FTDI's breakout boards as well. This
one is _very_ nice, and may suit you perfectly - it plugs right into a
breadboard:
http://www.ftdichip.com/Products/EvaluationKits/UM232R.htm

http://www.futureelectronics.com/en/Technologies/Product.aspx?ProductID=UM232RFUTURETECHNOLOGYDEVICES6502082

Good luck.

-Adam

On Mon, Mar 16, 2009 at 8:39 PM, solarwind <KILLspamx.solarwind.xKILLspamspamgmail.com> wrote:
> On Mon, Mar 16, 2009 at 8:11 PM, Peter Loron <RemoveMEpeterlTakeThisOuTspamstandingwave.org> wrote:
>> No, I'm in the US, but for a small number of items like this sent via
>> USPS Priority Mail, it should be < $6.
>
> Damnit. I was hoping you would be in Canada because I don't want to
> pay duties. Also, damnit because they're only SSOP. Would it kill them
> to make DIP?
>
> --
> solarwind
> -

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