參數(shù)資料
型號(hào): M29W640GB70ZA6F
廠(chǎng)商: STMICROELECTRONICS
元件分類(lèi): PROM
英文描述: 4M X 16 FLASH 3V PROM, 70 ns, PBGA48
封裝: 6 X 8 MM, 0.80 MM PITCH, ROHS COMPLIANT, TFBGA-48
文件頁(yè)數(shù): 84/90頁(yè)
文件大?。?/td> 849K
代理商: M29W640GB70ZA6F
M29W640GH, M29W640GL, M29W640GT, M29W640GB
Block Protection
85/90
Figure 27.
In-System Equipment Group Protect flowchart
2.
Block Protection Groups are shown in Appendix A, Tables 28 and 29.
3.
RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Block.
AI11563
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
n = 0
Wait 100s
WRITE 40h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
RP = VIH
++n
= 25
START
FAIL
PASS
YES
NO
DATA
=
01h
YES
NO
RP = VIH
Wait 4s
Verify
Protect
Set-up
End
READ DATA
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
RP = VID
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
WRITE 60h
ADDRESS = GROUP ADDRESS
A0, A2, A3, A6 = VIL, A1 = VIH
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