User's Manual U11919EJ3V0UM00
179
CHAPTER 13
µµµµ
PD78F9026A
The
µ
PD78F9026A is a version with an internal ROM of the mask ROM models replaced with a flash memory.
The differences between the
µ
PD78F9026A and the mask ROM models are shown in Table 13-1.
Table 13-1. Differences between
µµµµ
PD78F9026A and Mask ROM Models
Flash Memory Model
Mask ROM Model
Item
µ
PD78F9026A
µ
PD789022
µ
PD789024
µ
PD789025
µ
PD789026
ROM
16 Kbytes
(flash memory)
4 Kbytes
8 Kbytes
12 Kbytes
16 Kbytes
Internal
memory
Internal high-
speed RAM
512 bytes
256 bytes
512 bytes
IC pin
Not provided
Provided
V
PP
pin
Provided
Not provided
Electric characteristics
Refer to Data Sheet.
Caution
The flash memory and masked ROM products have different noise immunity and noise
radiation characteristics. Do not use ES products for evaluation when considering switching
from flash memory products to those using masked ROM upon the transition from
preproduction to mass-production. CS products (masked ROM products) should be used in
this case.
Summary of Contents for mPD789026 Subseries
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