• Bus Speed Mode (using 4 parallel data lines) (1) Default Speed mode: 3.3V signaling, Frequency up to 25 MHz, up to 12.5 MB/sec (2) High Speed mode: 3.3V signaling, Frequency up to 50 MHz, up to 25 MB/sec (3) SDR12: 1.8V signaling, Frequency up to 25 MHz, up to 12.5MB/sec (4) SDR25: 1.8V signaling, Frequency up to 50 MHz, up to 25MB/sec (5) SDR50: 1.8V signaling, Frequency up to 100 MHz, up to 50MB/sec (6) SDR104: 1.8V signaling, Frequency up to 208 MHz, up to 104MB/sec (7) DDR50: 1.8V signaling, Frequency up to 50 MHz, sampled on both clock edges, up to 50MB/sec • Switch function command supports Bus Speed Mode, Command System, Drive Strength,
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