Alternatives

Archiver

Hi,

Check out the CDP68HC68P1E Peripheral I/O IC, this gives you 8 bit bi-
directional I/O using the SPI bus. You can have 4 devices attached
to the same 4 pins from the stamp, and select each one by selecting
one of the addresses 00, 01, 10, 11. Data is only sent to the O/P's
when you cycle the enable pin.

Regards

Jon

Archiver

At 1/3/2001 Wednesday 04:25 PM +0000, Jonathan Millard wrote:
>Hi,
>
>Check out the CDP68HC68P1E Peripheral I/O IC, this gives you 8 bit bi-
>directional I/O using the SPI bus. You can have 4 devices attached
>to the same 4 pins from the stamp, and select each one by selecting
>one of the addresses 00, 01, 10, 11. Data is only sent to the O/P's
>when you cycle the enable pin.
>
>Regards
>
>Jon

Hi Jon -

> From what I can find on the web the CDP68HC68P1E is only available from
Dial Electronics in the UK. I've no idea what the chip might ordinarily
cost, but Dial want $ 9.95 just to ship anywhere but the UK. Would you happen
to know of another source ? Additionally, Dial offers no data sheets, would
you happen to know where they might be found ?

Thanks in advance

Regards,

Bruce Bates

Archiver

Bruce,
Found small stock here:
http://www.advanced-tech.com/Inv/webinvtxt.txt
They look like OLD Harris Semi parts.
If I got the # correct, it appears that Intersil has picked the part up. It
is in their Oct 2000 catalog and can be found at http://www.intersil.com.
Sorry, I didn't look for a source to sell them.
Hope that helps, Bruce.
Mike



At 01:13 PM 1/3/2001 -0500, you wrote:
>At 1/3/2001 Wednesday 04:25 PM +0000, Jonathan Millard wrote:
> >Hi,
> >
> >Check out the CDP68HC68P1E Peripheral I/O IC, this gives you 8 bit bi-
> >directional I/O using the SPI bus. You can have 4 devices attached
> >to the same 4 pins from the stamp, and select each one by selecting
> >one of the addresses 00, 01, 10, 11. Data is only sent to the O/P's
> >when you cycle the enable pin.
> >
> >Regards
> >
> >Jon
>
>Hi Jon -
>
> > From what I can find on the web the CDP68HC68P1E is only available from
>Dial Electronics in the UK. I've no idea what the chip might ordinarily
>cost, but Dial want $ 9.95 just to ship anywhere but the UK. Would you happen
>to know of another source ? Additionally, Dial offers no data sheets, would
>you happen to know where they might be found ?
>
>Thanks in advance
>
>Regards,
>
>Bruce Bates

_________________________________
Mike Walsh
walsh@i...
California Institute of Technology
Biology Electronics Shop
MS 216-76
Pasadena, CA 91125

Archiver

At 1/3/2001 Wednesday 11:48 AM -0800, MIKE WALSH wrote:
>Bruce,
>Found small stock here:
>http://www.advanced-tech.com/Inv/webinvtxt.txt
>They look like OLD Harris Semi parts.
>If I got the # correct, it appears that Intersil has picked the part up. It
>is in their Oct 2000 catalog and can be found at http://www.intersil.com.
>Sorry, I didn't look for a source to sell them.
>Hope that helps, Bruce.
>Mike
>

Hi Mike -

I found that text file too. I looked on the Itersil site and got NOWHERE.
No biggie - I was more curious than anything. It's tough any more being a
data sheet junkie : )


Regards,

Archiver

I'll point out that a PAK-IV adds 16 I/O with an SPI-like interface, and a
PAK-III will add 8 and both are readily available.

Regards,

Al Williams
AWC
> >
> > >Check out the CDP68HC68P1E Peripheral I/O IC, this gives you 8 bit bi-
> > >directional I/O using the SPI bus. You can have 4 devices attached
> > >to the same 4 pins from the stamp, and select each one by selecting
> > >one of the addresses 00, 01, 10, 11. Data is only sent to the O/P's
> > >when you cycle the enable pin.
> > >
> > >Regards
> > >
> > >Jon

Archiver

Jon,
It does look like an interesting part. With a little digging, I did find
them at Arrow and Future. Both have online ordering. The Future part is
$4.50 in 1-49 parts and is in stock. They get $7.00 to ship UPS ground in
the US. Sounds like an affordable price to try a few of them out. I
couldn't figure out if Arrow has them in stock. They were quite a bit
cheaper there, but they wanted $17 to ship it, so I'm going to give them a
miss this time. It may make sense if I use them in quantity.
Hope this helps Bruce, too.
Mike


At 04:25 PM 1/3/2001 +0000, you wrote:
>Hi,
>
>Check out the CDP68HC68P1E Peripheral I/O IC, this gives you 8 bit bi-
>directional I/O using the SPI bus. You can have 4 devices attached
>to the same 4 pins from the stamp, and select each one by selecting
>one of the addresses 00, 01, 10, 11. Data is only sent to the O/P's
>when you cycle the enable pin.
>
>Regards
>
>Jon

_________________________________
Mike Walsh
walsh@i...
California Institute of Technology
Biology Electronics Shop
MS 216-76
Pasadena, CA 91125