I2C chips to test with BV513 and B4221

[klaine8]

Hi All,

I am learning these Byvac products. I have already studied the
Vellaman K8000 I/O-board which uses I2C internally. I got it going
with lot of good help from Jim - THANKS.

Anyway now I would like to build something myself and therefore need
chips. I am not able to use surface mounted chips. What I need is
those old DIP, DIL, PDIP or what they are called. Those which are
8,14,16,24 pin packages you solder through PCB-board.

Could we make this thread to something that lists such chips and chips
what you have used.

I have studied
http://www.standardics.nxp.com/support/documents/i2c/
and I can recommend - it is a great resource. But going through those
spec pdfs is a lot of work.

Best Regards
Kari Laine
FINLAND

[Ian macdonald]

Hi Keri,

Is the problem with surface mount the fact that you can't mount them
on your board?

http://www.coolcomponents.co.uk/catalog/index.php?cPath=27&sort=2a&page=2

Is a solution for this problem, with a bit of practice you can solder
these sm type devices, have seen a few good tutorials on the web.

Cheers

Ian

[Kari Laine]

Hi Ian

On Sat, Nov 7, 2009 at 9:05 PM, Ian macdonald <ianm...@googlemail.com> wrote:
>
> Hi Keri,
>
> Is the problem with surface mount the fact that you can't mount them
> on your board?
>

Yep I haven't done any surface mount soldering. Maybe I must start
learning that....
Thanks for the link I might order couple of those adapters. But still
I think there must be quite a many I2C-chips on DIP-package.
I just have to locate the codes for them and then find a shop that can
deliver them.
The link I gave to NXP - is good one and I am going through it. Does
anyone know other manufacturers web-address where is a list of
I2C-chips?

> Is a solution for this problem, with a bit of practice you can solder
> these sm type devices, have seen a few good tutorials on the web.

Yep I found couple of myself but I need to practice that myself.
Maybe now is as good as any other time.

Thanks again
Best Regards
Kari

[Ian macdonald]

Hi Kari,

Apart from the normal of RS, Farnell, Maplin etc I don't know of any
that specialise in DIP packages, though I am sure there must be one.
But I would imagine that price would be a premium. I think you really
would be advised to practise sm soldering maybe get an old board from
a scrap printer etc for practise rather than waste good components.

Cheers

Ian

[Kari Laine]

Hi Ian,

yep. Problem in practising with old board is that it is quite
difficult to get components of the board without expensive equipment -
hot air blowers (I don't know the right term in english - maybe you
can tell me). In Finland those stations cost severall thousand euros.
I am going to get one - but I have to save a bit. I saw an video in
net on which it was shown how to solder surface mount chips with
conventional soldering iron. It did not seem very difficult. So I
might try with some surface mount I2C chips. They are not too
expensive.

On the other hand I need a PCB-board to solder those. I don't yet have
equipment to make PCB-boards for surface mount chips. Total cost for
such equipent in Finland is about 600 euros. Until now I have used
those experiment boards with copper conduits going on the surface.

So I am going to get to age of surface soldering but not as of yet. I
might practise once or something like that. I know I can get ready
made boards from Olimex for 30-40 euros - which is not bad.

I will hunt again from NXP site for DIP-packaged chips and if I get
the list done I will post it here.

Thanks again
Best Regards
Kari

[peter247]

Hi , the chips I use are the port expenders

eg the mcp23008 ... 8 bit , or the mcp23016 ... 16 bit

The mcp23016 need extra a cap and resistor over the mcp2308

Peter

On Nov 8, 1:33 pm, Kari Laine <klai...@gmail.com> wrote:
> Hi Ian,
>
> yep. Problem in practising with old board is that it is quite
> difficult to get components of the board without expensive equipment -
> hot air blowers (I don't know the right term in english - maybe you
> can tell me). In Finland those stations cost severall thousand euros.
> I am going to get one - but I have to save a bit. I saw an video in
> net on which it was shown how to solder surface mount chips with
> conventional soldering iron. It did not seem very difficult. So I
> might try with some surface mount I2C chips. They are not too
> expensive.
>
> On the other hand I need a PCB-board to solder those. I don't yet have
> equipment to make PCB-boards for surface mount chips. Total cost for
> such equipent in Finland is about 600 euros. Until now I have used
> those experiment boards with copper conduits going on the surface.
>
> So I am going to get to age of surface soldering but not as of yet. I
> might practise once or something like that. I know I can get ready
> made boards from Olimex for 30-40 euros - which is not bad.
>
> I will hunt again from NXP site for DIP-packaged chips and if I get
> the list done I will post it here.
>
> Thanks again
> Best Regards
> Kari
>

> On Sun, Nov 8, 2009 at 1:53 PM, Ian macdonald <ianma...@googlemail.com> wrote:
>
> > Hi Kari,
>
> > Apart from the normal of RS, Farnell, Maplin etc I don't know of any
> > that specialise in DIP packages, though I am sure there must be one.
> > But I would imagine that price would be a premium.  I think you really
> > would be advised to practise sm soldering maybe get an old board from
> > a scrap printer etc for practise rather than waste good components.
>
> > Cheers
>
> > Ian
>

> > On Sun, Nov 8, 2009 at 7:14 AM, Kari Laine <klai...@gmail.com> wrote:
>
> >> Hi Ian
>

[Kari Laine]

Thanks,

I will try get those.

Best Regards
Kari