The LH28F004SU's independently lockable 32 symmetrical blocked architecture (16K each) extended cycling, low power operation, very fast write and read performance and selective block locking provide a highly flexible memory component suitable for cellular phone, facsimile, game, PC, printer and handy terminal. The LH28F004SU's 5.0 V/3.3 V power supply operation enables the design of memory cards which can be read in 3.3 V system and written in 5.0 V/3.3 V systems. Its x8 architecture allows the optimization of memory to processor interface. The flexible block locking option enables bundling of executable application software in a Resident Flash Array or memory card. Manufactured on Sharp's 0.45 m ETOXTM process technology, the LH28F004SU is the most cost-effective, high-density 3.3 V flash memory.