Quote:
Originally Posted by SiriusHardware
My 'Maplin Z80 CPU' PCB used 6116 RAMs of any flavour and had the option to battery-back the RAM, so the principle may be applicable to any type of 6116.
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Yes I think its just some are designed to use a very low current in standby (1mA or so) whereas standard parts use 10mA or higher when not selected.