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Rev.1.02 Jul 01, 2005 page 306 of 314
REJ09B0126-0102
M16C/6N Group (M16C/6NL, M16C/6NN) 22. Usage Precaution
Under development
This document is under development and its contents are subject to change.
22.16 Electrical Characteristic Differences Between Mask ROM and Flash Memory
Version Microcomputers
Flash memory version and mask ROM version may have different characteristics, operating margin, noise
tolerated dose, noise width dose in electrical characteristics due to internal ROM, different layout pattern,
etc. When switching to the mask ROM version, conduct equivalent tests as system evaluation tests
conducted in the flash memory version.