Summary description
   The M29W640F is a 64 Mbit (8Mb x8 or 4Mb x16) non-volatile memory that can be read, erased and reprogrammed. These operations can be performed using a single low voltage (2.7 to 3.6V) supply. On power-up the memory defaults to its Read mode.

FEATURE summary
◾ Supply voltage
   – VCC = 2.7V to 3.6V for Program, Erase,
      Read
   – VPP =12 V for Fast Program (optional)
◾ Asynchronous Random/Page Read
   – Page Width: 4 Words
   – Page Access: 25ns
   – Random Access: 60ns, 70ns
◾ Programming time
   – 10µs per Byte/Word typical
   – 4 Words / 8 Bytes Program
◾ 135 Memory Blocks
   – 1 Boot Block and 7 Parameter Blocks,
      8 KBytes each (Top or Bottom location)
   – 127 Main Blocks, 64 KBytes each
◾ Program/Erase Controller
   – Embedded Byte/Word Program algorithms
◾ Program/Erase Suspend and Resume
   – Read from any Block during Program
      Suspend
   – Read and Program another Block during
      Erase Suspend
◾ Unlock Bypass Program command
   – Faster Production/Batch Programming
◾ VPP/WP pin for Fast Program and Write Protect
◾ Temporary Block Unprotection mode
◾ Common Flash Interface
   – 64-bit Security Code
◾ Extended Memory Block
◾ Extra block used as security block or to store
   additional information
◾ Low power consumption
   – Standby and Automatic Standby
◾ 100,000 Program/Erase cycles per block
◾ Electronic Signature
   – Manufacturer Code: 0020h
◾ ECOPACK® packages