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Altera_Forum
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15 years ago

SSRAM (IS61LPS25636A)) on Cyclone III starter board

I am trying to read a bunch of data from SSRAM (IS61LPS25636A)) on Cyclone III, which is 256k*32 bit in size. However, from the board manual, there are 32 data bits, 21 address bit (should be 18 bits...
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Altera_Forum
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15 years ago

There is no problem. A20 and A19 are marked as NC (not connected) in the schematic. A18 is also without function, as the ISSI datasheet clarifies. They are reserved for same package, higher capacity parts.