68300

Thanks. I have shipped several thousand units using 24x buffers but 
did not know about the problem with 37x latches. It explains some 
weirdness seen on some lab prototypes...

Mike Turner

On Fri, 14 Nov 2003 08:18:22 -0800
  Robert Yablonski <yabo@...> wrote:
>Be aware that you should not drive any line with 373 or 374 type 
>latches.  These devices will interpret line reflections as 
>instructions to 
>flip the state of the internal flip-flops.  I know after shipping 
>5000 
>units with the defect.  Always buffer with a 240 or equivalent to 
>prevent 
>your output latches from being effected by the driven element (line 
>and load).
>
>Robert. Yablonski
>
>
>At 03:02 PM 11/14/03 +0100, you wrote:
>>Hello List,
>>
>>I've to design an Board with a CPU 68340 and Centronics Interface for
>>printers.
>>Have anybody of you an idea how to realizing this.
>>The actual idea is to use a PIA to have enough I/O's.
>>Have you an idea which PIA can be used for this.
>>I've found a PIA in older Designs but this one isn't an actual 
>>product an 
>>will not be produced.
>>Are there some ohter possibilities with IC's to realize the 
>>Centronics 
>>interface.
>>
>>Thanks to all who can help me.
>>
>>Jo
>>:-)