Re: How do I read a TI 18S42 with a Data I/O 29b/2b?

Thanks Dave!

J8048A
TBP18S42N

I looked at the schematics (this is from Red Alert, the Character board)
and they label the part "S472". I did a search in the device files and
found these 2 entries. Do you think they are a closer match than the 28S42?

NAT 54S472 PROM DIP 008/009 V07 C
NAT 74S472 PROM DIP 008/009 V07 C

This is my first foray outside of EPROMs. Do I need to be MORE careful
about static with PROMs?

Thanks!

At 01:53 PM 5/5/2004, David Fish wrote:
>I would try reading it as a TI 28S42 first, use F/P code 13/09.
>I can't find the 18S42 in my old TI data books and it's not
>listed on the D I/O wall charts either. It seems to be a very
>obscure part. Is there a date code stamped on it?
>
>You're probably right about the 2B's revision being the last three
>digits. Mine is 950-0086-006.
>
>Good luck,
>Dave
>
>----- Original Message -----
>From: "Franklin Bowen" <Franklin@Bowen.net>
>To: <techtoolslist@flippers.com>
>Sent: Wednesday, May 05, 2004 12:27 PM
>Subject: How do I read a TI 18S42 with a Data I/O 29b/2b?
>
>
> > How do I read a TI 18S42 with a Data I/O 29b/2b? I did a search through
> > the device files and found no match. A search on Google found this
>article:
> >
> > http://groups.google.com/groups?selm=leD3a.129288%24vm2.77578%40rwcrnsc54
> >
> > So can I read this as a AMD 27S29, a device that the 2b supports?
> >
> > A couple unrelated questions:
> > 1) What is the A/C (last) column in the device lists?
> > 2) How do I tell the version number of my 2B? On everything else it's
> > obvious. Is it the last 3 digits of the part number? So 950-0086-011
> > would mean I have a version 11?
> >
> > Thanks!
> >
> > --
> > Franklin Bowen (Franklin@Bowen.net)
> > http://fmbbowen.com:39353
> >
> >
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--
Franklin Bowen (Franklin@Bowen.net)
http://fmbbowen.com:39353 
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