Datasheet
Section 17 ROM 
Rev.7.00 Feb. 14, 2007  page 687 of 1108 
REJ09B0089-0700 
When abnormalities, such as runaway of programming/erasing are detected, these modes enter 
the error protection state and the programming/erasing processing is suspended. 
•  Programming/erasing time 
The flash memory programming time is 3 ms (typ) for 128-byte simultaneous programming, 
which is equivalent to 25 µs per byte. The erasing time is 1000 ms (typ) per 64-kbyte block. 
•  Number of programming 
Flash memory programming can be performed a minimum of 100 times. 










