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User’s Manual U11302EJ4V0UM
APPENDIX A DIFFERENCES BETWEEN
µ
PD78044H, 780228, AND 780208 SUBSERIES
Table A-1 shows the major differences between the
µ
PD78044H, 780228, and 780208 Subseries.
Table A-1. Major Differences Between
µ
PD78044H, 780228, and 780208 Subseries
Part Number
µ
PD78044H Subseries
µ
PD780228 Subseries
µ
PD780208 Subseries
Item
PROM or flash memory version
µ
PD78P048B
µ
PD78F0228
µ
PD78P0208
(PROM)
(flash memory)
(PROM)
Supply voltage
V
DD
= 2.7 to 5.5 V
V
DD
= 4.5 to 5.5 V
V
DD
= 2.7 to 5.5 V
Internal ROM size
µ
PD78044H:
32 KB
µ
PD780226:
48 KB
µ
PD780204:
32 KB
µ
PD78045H:
40 KB
µ
PD780228:
60 KB
µ
PD780204A: 32 KB
µ
PD78046H:
48 KB
µ
PD78F0228: 60 KB
µ
PD780205:
40 KB
µ
PD78P048B: 60 KB
µ
PD780205A: 40 KB
µ
PD780206:
48 KB
µ
PD780208:
60 KB
µ
PD78P0208: 60 KB
Internal expansion RAM size
µ
PD78P048B only: 1024 bytes
512 bytes
µ
PD780206, 780208, and
78P0208 only: 1024 bytes
Internal buffer RAM size
µ
PD78P048B only: 64 bytes
None
64 bytes
VFD display RAM size
48 bytes
96 bytes
80 bytes
CPU clock
Main system clock or
Main system clock only
Main system clock or
subsystem clock selectable
subsystem clock selectable
I/O ports
68 pins
72 pins
74 pins
Total of VFD display output pins
34 pins
48 pins
53 pins
Serial interface
1 channel
2 channels
Timer
16-bit timer/event counter:
8-bit remote control timer:
16-bit timer/event counter:
1 channel
1 channel
1 channel
8-bit timer/event counter:
8-bit PWM timer: 2 channels
8-bit timer/event counter:
2 channels
Watchdog timer: 1 channel
2 channels
Watch timer:
1 channel
Watch timer:
1 channel
Watchdog timer: 1 channel
Watchdog timer: 1 channel
Clock output
Provided
None
Provided
Buzzer output
Provided
None
Provided
Vectored interrupt
Internal
10
8
11
source
External
4
4
4
Test input
Provided
None
Provided
Package
80-pin plastic QFP
100-pin plastic QFP
100-pin plastic QFP
(14
×
20)
(14
×
20)
(14
×
20)
Electrical specifications and
Refer to individual data sheet.
recommended soldering conditions
Remark
In addition to the above items, the configuration of the development tools also differs between the above
subseries (especially between the PROM and flash memory versions). For details, refer to the user’s
manual of each subseries.
Содержание mPD780204
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