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The µ PD78F9801 is a product that substitutes flash memory for the internal ROM of the mask ROM version. The
differences between the µ PD78F9801 and the mask ROM versions are shown in Table 14-1.
Table 14-1. Differences Between µ µ µ µ PD78F9801 and Mask ROM Versions
Item
Internal memory
ROM
High-speed RAM
IC pin
V
pin
PP
Electrical specifications
Caution
There are differences in noise immunity and noise radiation between the flash memory and
mask ROM versions. When pre-producing an application set with the flash memory version
and then mass-producing it with the mask ROM version, be sure to conduct sufficient
evaluations for the commercial samples (not engineering samples) of the mask ROM version.
190
µ µ µ µ PD78F9801
CHAPTER 14
Flash Memory Version
µ PD78F9801
16 KB (Flash memory)
256 bytes
Not provided
Provided
Refer to CHAPTER 16 ELECTRICAL SPECIFICATIONS.
User's Manual U12978EJ3V0UD
Mask ROM Version
µ PD789800
8 KB
Provided
Not provided
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