Information on IC 8287 help

Allison ajp166 at
Mon Apr 25 12:58:06 CDT 2005

>Subject: Information on IC 8287 help
>   From: "Dwight K. Elvey" <dwight.elvey at>
>   Date: Mon, 25 Apr 2005 09:30:35 -0700 (PDT)
>     To: cctalk at
> In may searches for a DP8303, I have found nothing.
>I did find with the help of those in this group that
>the 8304 was the same except non-inverted. Looking
>for this part, I found that several places list
>a 8286 as being the same. This is also refered to
>as a uPD71086. While looking at the Jameco catalog,
>I found the next list stated as an inverting buffer
>with the number 8287. I believe this may be the same
>as the 8303 that I've been looking for.
> Can anyone tell me what the pinout is for either
>a i8287 or a uPD71087 ??

the 8286/7 is an intel part.  the 8286 is non inverting and the 87 inverts
data.  They are both octal bidirectional bus transceivers.

look it up here as "8286" to get a full PDF datasheet.


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