參數(shù)資料
型號(hào): M29W640GB70ZA6F
廠商: STMICROELECTRONICS
元件分類: 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
文件頁數(shù): 83/90頁
文件大小: 849K
代理商: M29W640GB70ZA6F
Block Protection
M29W640GH, M29W640GL, M29W640GT, M29W640GB
Figure 26.
Programmer Equipment Chip Unprotect flowchart
1.
Block Protection Groups are shown in Appendix A, Tables 28 and 29.
PROTECT ALL GROUPS
AI11556b
A6, A12, A15 = VIH(1)
E, G, A9 = VID
DATA
W = VIH
E, G = VIH
ADDRESS = CURRENT GROUP ADDRESS
A0, A2, A3 = VIL, A1 =VIH,
A6 =VIH, A9 = VID, Others = X
Wait 10ms
=
00h
INCREMENT
CURRENT GROUP
n = 0
CURRENT GROUP = 0
Wait 4s
W = VIL
++n
= 1000
START
YES
NO
LAST
GROUP
YES
NO
E = VIL
Wait 4s
G = VIL
Wait 60ns
Read DATA
FAIL
PASS
Verify
Unprotect
Set-up
End
A9 = VIH
E, G = VIH
A9 = VIH
E, G = VIH
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