參數(shù)資料
型號(hào): X28HC64PIZ-90
廠商: INTERSIL CORP
元件分類: DRAM
英文描述: 5 Volt, Byte Alterable EEPROM
中文描述: 8K X 8 EEPROM 5V, 90 ns, PDIP28
封裝: ROHS COMPLIANT, PLASTIC, MS-011AB, DIP-28
文件頁數(shù): 10/17頁
文件大?。?/td> 265K
代理商: X28HC64PIZ-90
10
FN8109.1
June 7, 2006
RESETTING SOFTWARE DATA PROTECTION
Figure 8. Reset Software Data Protection Timing Sequence
Figure 9. Software Sequence to Deactivate Software
Data Protection
In the event the user wants to deactivate the software
data protection feature for testing or reprogramming in
an EEPROM programmer, the following six step algo-
rithm will reset the internal protection circuit. After t
WC
,
the X28HC64 will be in standard operating mode.
Note:
Once initiated, the sequence of write operations
should not be interrupted.
CE
WE
Standard
Operating
Mode
V
CC
Data
ADDR
AAA
1555
55
0AAA
80
1555
t
WC
AA
1555
55
0AAA
20
1555
Write Data 55
to Address
0AAA
Write Data 55
to Address
0AAA
Write Data 80
to Address
1555
Write Data AA
Address
1555
Write Data 20
to Address
1555
Write Data AA
to Address
1555
X28HC64
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