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FII-PRX100 Hardware Reference Guide
Fraser Innovation Inc
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SRAM
SRAM (Static Random-Access Memory) is a type of random-access memory.
The "static" means that if the memory is kept energized, the data stored therein
can be kept constant. In contrast, data stored in dynamic random-access memory
(DRAM) needs to be updated periodically. However, when the power supply is
stopped, the data stored in the SRAM will disappear (called volatile memory),
which is different from the ROM or flash memory that can store data after the
power is turned off. The development board has two Super SRAMs, which are
connected in parallel to a 32-bit data interface. The maximum access space is up
to 2M bytes, IS61WV51216 (2 pieces) 512K x 32bit. The design schematics is as
follows: