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Preliminary User’s Manual U14581EJ3V0UM00
CHAPTER 22
µ
PD78F0852
The
µ
PD78F0852 is a version with a flash memory in
µ
PD780852 Subseries.
The
µ
PD78F0852 replaces the internal ROM of the
µ
PD780852(A) with flash memory to which a program can be
written, deleted and overwritten while mounted on a board. Table 22-1 lists the differences between the
µ
PD78F0852
and the mask ROM version.
Table 22-1. Differences between
µ
PD78F0852 and Mask ROM Version
Item
µ
PD78F0852
µ
PD780851(A)
µ
PD780852(A)
Internal ROM type
Flash memory
Mask ROM
Internal ROM capacity
40 Kbytes
32 Kbytes
40 Kbytes
IC pin
None
Available
V
PP
pin
Available
None
Electrical specifications
See data sheet of each product.
Quality grade
Standard (for general
Special (for highly-reliable electronic devices)
electronic devices)
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.
Содержание mPD780852 Series
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