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AT89C5122D-RDRUM 数据表(PDF) 29 Page - ATMEL Corporation

部件名 AT89C5122D-RDRUM
功能描述  C51 Microcontroller with USB and Smart Card Reader Interfaces
PDF  208 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C5122D-RDRUM 数据表(HTML) 29 Page - ATMEL Corporation

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29
AT83R5122, AT8xC5122/23
4202F–SCR–07/2008
Figure 13.
AT83R5122, AT8xC5122’s ROM Version
PROGRAM MEMORY
(Read only)
0000
7FFF
FFFF
EA=1
INTERNAL
32K ROM
EA=0
EXTERNAL
EXTERNAL
RESET@
<0000>
SFR
Space
80
FF
On-chip
512 bytes
XRAM
0000
01FF
FFFF
RD
WR
00
7F
80
FF
Upper
128 Bytes
RAM
Lower
128 Bytes
RAM
DATA MEMORY
(Read / Write)
0000
EXTRAM=0
EXTRAM=1
EXTERNAL
EXTERNAL
XRAM
XRAM
01FF
0200
8000
Roll-Over
PSEN
On-Chip 256 bytes RAM
Direct
Addressing
Indirect
Addressing
512 Bytes
INTERNAL
E2PROM
01FF
0000
Optional
Roll-Over



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