FLASH MEMORY AND DATA PROCESSOR

摘要

PROBLEM TO BE SOLVED: To obtain a flash memory in which the facilitating of external controls is attained by obviating an erasing command. SOLUTION: An MPU 19 controls the erase operation of a flash memory array 13 and the write operation of the write data held in a write data latch 20 to the flash memory 13 as a series of operations by the write data latch 20 holdable the write data fetched via input-output pins (PI/00-P/17) and the command of a write operation from the outside. Consequently, since the issuing of the erasing command at the time of rewriting stored information is obviated, the external controls of the flash memory 10 are simplified.