NON-VOLATILE MEMORY, PULSE WIDTH DECIDING METHOD OF WRITING PULSE IN NON-VOLATILE MEMORY, PULSE WIDTH DECIDING METHOD OF ERASING PULSE IN NON-VOLATILE MEMORY, AND BUILT-IN MICROCOMPUTER OF NON-VOLATILE MEMORY

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive non-volatile memory disponsing with a generating circuit of an independent clock signal used exclusively for a non- volatile memory. ;SOLUTION: This device is constituted of a pulse width storing means 16 storing pulse width data of a writing pulse, a pulse width writing means 2 writing data in the pulse width storing means 16, a clock supplying means 5 supplying a clock signal CK1, a clock frequency-dividing means 15 frequency- dividing the clock signal CK1 based on pulse width data of the pulse width storing means 16 and outputting a clock signal CK2, and a pulse generating means 13 generating a timing signal of a writing pulse based on the clock signal CK2.;COPYRIGHT: (C)1999,JPO