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Mathesar / 14mhz-accelerator

14MHz 68000 accelerator with 1MB fast ram for amiga 500
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simple 8MB option (AS6C6416) #8

Open raszpl opened 1 year ago

raszpl commented 1 year ago

AS6C6416 https://www.alliancememory.com/wp-content/uploads/pdf/Alliance%20Memory_64M_AS6C6416-55TIN%20v1.0%20July%202017.pdf 3.3V only (max Vcc 4.6V) so author of Parciero went full insane mode https://hackaday.com/2021/01/08/the-amiga-1000-still-receiving-new-peripherals-35-years-later/#comment-6309849 but it works. To be on a safe side there should be $1 SN74LVC16T245/SN74LVC16245 in front of it. $28 so not terrible https://www.digikey.com/en/products/detail/alliance-memory-inc/AS6C6416-55TIN/7791412 considering two IS61C5128AS is already $10.

Mathesar commented 1 month ago

Could be done I guess. The address decoder has to be changed of course, as well the RAM CS and OE / WR strobes as these are currently layed out for a high byte and low byte RAM chip. Also, the RAM would have to be added via a command in the startup sequence as it will not be auto recognized.