參數(shù)資料
型號(hào): SLX24C0816P
廠商: SIEMENS AG
英文描述: 8/16 Kbit 1024/2048 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus, Page Protection Mode
中文描述: 8 / 16千位二千〇四十八分之一千〇二十四× 8位串行CMOS EEPROM的,I2C同步2線巴士,頁(yè)面保護(hù)模式
文件頁(yè)數(shù): 18/27頁(yè)
文件大?。?/td> 362K
代理商: SLX24C0816P
SLx 24C08/16/P
Semiconductor Group
18
1998-07-27
7
Each page (16 bytes) in the Data Memory can be protected against unintended data
changes by an associated protection bit. The protection bit memory consists of an
additional EEPROM of 64/128 bits (
figure 14
).
Data in the Data Memory can be modified only if the assigned protection bit is erased
(logical state “1”). After writing the data bytes to a page, the protection is achieved by
writing the associated protection bit (logical state “0”). Further changes in the data in a
protected page is possible only after erasing the protection bit.
Page Protection Mode
TM
Figure 14
Data Page and Assigned Protection Memory
A special procedure to write or erase a protection bit guarantees proper activation or
deactivation respectively of page protection. For protection bit write or erase, all 16 data
bytes of the respective page have to be entered for a second time. The data then are
compared internally with the data to be protected, and in case of identity the protection
bit is written or erased respectively.
1
0
2
3
.
.
.
0
1
2
3
n
Page 0
Page 1
Page 2
Page 3
Page n
Byte
Bit
Data Memory Area
P
IED02272
15
. . .
.
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