GENERAL DESCRIPTION
The MX29LV640BU is a 64-mega bit Flash memory organized as 4M bytes of 16 bits. MXICs Flash memories offer the most cost-effective and reliable read/write nonvolatile random access memory. The MX29LV640BU is packaged in 48-pin TSOP and 63-ball CSP. It is designed to be reprogrammed and erased in system or in standard EPROM programmers.

FEATURES
GENERAL FEATURES
•  4,194,304 x 16 byte structure
•  One hundred twenty-eight Equal Sectors with 32K word each
    - Any combination of sectors can be erased with erase suspend/resume function
•  Sector Protection/Chip Unprotect
    - Provides sector group protect function to prevent program or erase operation in the protected sector group
    - Provides chip unprotect function to allow code changes
    - Provides temporary sector group unprotect function for code changes in previously protected sector groups
•  Secured Silicon Sector
    - Provides a 128-word area for code or data that can be permanently protected.
    - Once this sector is protected, it is prohibited to program or erase within the sector again.
•  Single Power Supply Operation
    - 2.7 to 3.6 volt for read, erase, and program operations
•  Latch-up protected to 250mA from -1V to Vcc + 1V
•  Low Vcc write inhibit is equal to or less than 1.5V
•  Compatible with JEDEC standard
    - Pinout and software compatible to single power supply Flash
(Continue ...)