參數(shù)資料
型號(hào)： M34W02
廠商： 意法半導(dǎo)體
元件分類： DRAM
英文描述： 2Kbit Serial EEPROM with Software Data Protection(2Mb串行EEPROM)
中文描述： 2Kbit串行EEPROM與軟件數(shù)據(jù)保護(hù)（處理器串行EEPROM中）
文件頁數(shù)： 11/17頁
文件大?。?/td> 152K
代理商： M34W02
16
AI01964
WC = 0:
The complete EEPROM
memory area
can be modified
ZONE 2
MEMORY
AREA
15
4
5
3
2
1
3
ZONE 1
16
WC = 1 and b7 = 1:
The rows 4 to 16 and the
Protect Register are
Write Protected
ZONE 2
15
4
5
3
2
1
3
ZONE 1
16
WC = 1 and b7 = 0:
The rows 1, 2, and 3 and the
Protect Register are
Write Protected
ZONE 2
15
4
5
3
2
1
3
ZONE 1
EXAMPLES OF THE PROTECT REGISTER AND THE "WC" INPUT PIN
Row
Number
Protect
Register
Figure 9. Memory Protection
S
S
BYTE WRITE
DEV SEL
BYTE ADDR
DATA IN
S
PAGE WRITE
DEV SEL
BYTE ADDR
DATA IN 1
DATA IN 2
AI01941
S
DATA IN N
ACK
ACK
ACK
R/W
ACK
ACK
ACK
R/W
ACK
ACK
Figure 10. Write Modes Sequence in Non-Write Protected Area
11/17
M34W02
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