TMS2716 Programmer shield coming soon

Over the past few years I’ve received numerous queries by email as to whether or not my 2708 programmer can program the TMS2716 – an oddball EPROM which requires the same triple rail power supply arrangement of the 2708 however with twice the capacity and some predictable creative pin multiplexing to accommodate such a capacity in a 24-pin package. The kind of thing I was hoping didn’t exist, only to be informed that it does.

The short answer is that it’s not possible to easily modify my design to handle the TMS2716. It requires a number of hardware and software changes, none of which are straightforward.

Up until now I had dismissed the possibility of supporting it but as people keep asking, and there are a few improvements I’d like to make to that design anyway I’ve started working on a new version which supports the TMS2716. It should be finished in the next couple of months. Watch this space.

Posted in Vintage microcontrollers, Vintage PC

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