參數(shù)資料
型號: SST89E554A-40-I-TQJ
廠商: SILICON STORAGE TECHNOLOGY INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44
封裝: MS-026ACB, TQFP-44
文件頁數(shù): 6/87頁
文件大?。?/td> 996K
代理商: SST89E554A-40-I-TQJ
14
Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
FIGURE
3-2: INTERNAL AND EXTERNAL DATA MEMORY STRUCTURE
000H
2FFH
00H
FFH
Upper 128 Bytes
Internal RAM
Lower 128 Bytes
Internal RAM
(Indirect & Direct
Addressing)
(Indirect Addressing)
(Direct Addressing)
Special
Function
Registers
(SFRs)
80H
FFH
FFFFH
000H
External
Data
Memory
2FFH
0000H
External
Data
Memory
EXTRAM = 0
EXTRAM = 1
Expanded RAM
0300H
(Indirect Addressing)
FFFFH
(Indirect Addressing)
80H
7FH
1228 F04.0
Expanded
RAM
768 Bytes
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