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05/20/05 15:02
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#93648 - 24-pin parts?
The old Kensington 22-key keypad for the Mac uses a 24-pin Philips mcu to encode it and implement the ADB slave protocol. I'm not interested in the ADB, but I do want to use that keypad because it is well suited to an application in my lab.

My problem is that I need a 24-pin 5-volt mcu with as few of its pins dedicated to interface-specific functions as possible, so I can minmize the amount of hardware-hacking/butchery I have to do.

Can anyone recommend a 24-pin part, preferably a reprogrammable one, that might fit this application?

thanks,

RE

List of 16 messages in thread
TopicAuthorDate
24-pin parts?            01/01/70 00:00      
   i tend to recall            01/01/70 00:00      
      datasheet of S87C751            01/01/70 00:00      
         EPROM, not OTP            01/01/70 00:00      
            EPROM *AND* OTP            01/01/70 00:00      
   DIL headers            01/01/70 00:00      
      Yes. Like This....            01/01/70 00:00      
   24-pin parts            01/01/70 00:00      
      What kind of package???            01/01/70 00:00      
         The look of it....            01/01/70 00:00      
         24-pin package            01/01/70 00:00      
      Maybe there are other options....            01/01/70 00:00      
         24-pin (skinny dip) 805x            01/01/70 00:00      
      try google            01/01/70 00:00      
      Ebay            01/01/70 00:00      
         or buy new            01/01/70 00:00      

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