GENERAL DESCRIPTION
   MX66L51235F is 512Mb bits Serial NOR Flash memory, which is configured as 67,108,864 x 8 internally. When it is in two or four I/O mode, the structure becomes 268,435,456 bits x 2 or 134,217,728 bits x 4.

FEATURES
GENERAL
• Supports Serial Peripheral Interface -- Mode 0 and
   Mode 3
• Single Power Supply Operation
   - 2.7 to 3.6 volt for read, erase, and program operations
• 536,870,912 x 1 bit structure or 268,435,456 x 2 bits
   (two I/O mode) structure or 134,217,728 x 4 bits (four
   I/O mode) structure
• Protocol Support
   - Single I/O, Dual I/O and Quad I/O
• Latch-up protected to 100mA from -1V to Vcc +1V
• Low Vcc write inhibit is from 2.3V to 2.5V
• Fast read for SPI mode
   - Support clock frequency up to 133MHz for all
         protocols
   - Support Fast Read, 2READ, DREAD, 4READ,
      QREAD instructions.
   - Configurable dummy cycle number for fast read
      operation
• Quad Peripheral Interface (QPI) available
• Equal Sectors with 4K byte each, or Equal Blocks
   with 32K byte each or Equal Blocks with 64K byte
   each
   - Any Block can be erased individually
• Programming :
   - 256byte page buffer
   - Quad Input/Output page program(4PP) to enhance
      program performance
• Typical 100,000 erase/program cycles
• 20 years data retention