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參數(shù)資料
| 型號(hào)： | UPD780023AYCW(A)-XXX |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP64 |
| 封裝： | 0.750 INCH, PLASTIC, SDIP-64 |
| 文件頁(yè)數(shù)： | 14/92頁(yè) |
| 文件大?。?/td> | 689K |
| 代理商： | UPD780023AYCW(A)-XXX |
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21
PD780021A(A), 780022A(A), 780023A(A), 780024A(A), 780021AY(A), 780022AY(A), 780023AY(A), 780024AY(A)
Data Sheet U15131EJ3V0DS
Note
The internal ROM and internal high-speed RAM capacities vary depending on the product (see the following
table).
Part Number
Last Address of Internal ROM
Start Address of Internal High-Speed RAM
nnnnH
mmmmH
PD780021A(A), 780021AY(A)
1FFFH
FD00H
PD780022A(A), 780022AY(A)
3FFFH
PD780023A(A), 780023AY(A)
5FFFH
FB00H
PD780024A(A), 780024AY(A)
7FFFH
4. MEMORY SPACE
Figure 4-1 shows the memory map of the
PD780021A(A), 780022A(A), 780023A(A), 780024A(A), 780021AY(A),
780022AY(A), 780023AY(A), and 780024AY(A).
Figure 4-1. Memory Map
Special function registers (SFR)
256
× 8 bits
General-purpose
registers
32
× 8 bits
Internal high-speed
RAMNote
Reserved
External memory
Internal ROMNote
Data memory
space
Program memory
space
FFFFH
FF00H
FEFFH
FEE0H
FEDFH
mmmmH
mmmmH – 1
F7FFH
nnnnH + 1
nnnnH
0000H
Program area
CALLF entry area
Program area
CALLT table area
Vector table area
nnnnH
1000H
0FFFH
0800H
07FFH
0080H
007FH
0040H
003FH
0000H
F800H
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