205
CHAPTER 15
µ
PD78P083
CHAPTER 15
µ
PD78P083
The
µ
PD78P083 is a single-chip microcontroller with an on-chip one-time PROM or with an on-chip EPROM which
has program write, erasure and rewrite capability.
Differences between the
µ
PD78P083 and mask ROM versions are shown in Table 15-1.
Table 15-1. Differences between the
µ
PD78P083 and Mask ROM Versions
Parameter
µ
PD78P083
Mask ROM Versions
Internal ROM type
One-time PROM/EPROM
Mask ROM
Internal ROM capacity
24 Kbytes
µ
PD78081 : 8 Kbytes
µ
PD78082 : 16 Kbytes
Internal high-speed RAM capacity
512 bytes
µ
PD78081 : 256 bytes
µ
PD78082 : 384 bytes
Internal ROM and internal high-speed
Enable
Note
Disable
RAM capacity change by internal
memory size switching register (IMS)
IC pin
Not available
Available
V
PP
pin
Available
Not available
Electrical specifications
Refer to a data sheet of each product
Note
The internal PROM becomes 24 Kbytes and the internal expansion RAM becomes 512 bytes by the RESET
input.
Caution
Noise resistance and noise radiation differs between PROM versions and Mask ROM versions.
If studying the replacement of PROM versions with mask ROM versions in the process of
prototype to volume production, do a thorough evaluation with mask ROM versions with CS
versions (not ES versions).
Содержание NEC PD78081(A)
Страница 23: ...xii MEMO...
Страница 37: ...14 CHAPTER 1 OUTLINE MEMO...
Страница 47: ...24 CHAPTER 2 PIN FUNCTION MEMO...
Страница 91: ...68 CHAPTER 4 PORT FUNCTIONS MEMO...
Страница 125: ...102 CHAPTER 6 8 BIT TIMER EVENT COUNTERS 5 AND 6 MEMO...
Страница 157: ...134 CHAPTER 10 A D CONVERTER MEMO...
Страница 193: ...170 CHAPTER 11 SERIAL INTERFACE CHANNEL 2 MEMO...
Страница 253: ...230 CHAPTER 16 INSTRUCTION SET MEMO...
Страница 269: ...246 APPENDIX B EMBEDDED SOFTWARE MEMO...