S72XS-R MCP 256 Mb (16M x 16 bit), 1.8V MirrorBit.
Cypress Semiconductor
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S72XS-R - Flash and DDR DRAM
S72XS-R MCP 256 Mb (16M x 16 bit), 1.8V MirrorBit® Flash and DDR DRAM Features ■ Power supply voltage ❐ 1.7V to 1.95V ■ Burst speed ❐ Flash = 83 MHz,.