參數(shù)資料
型號: M29DW640F70N6F
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 70 ns, PDSO48
封裝: 12 X 20 MM, LEAD FREE, PLASTIC, TSOP-48
文件頁數(shù): 65/74頁
文件大?。?/td> 556K
代理商: M29DW640F70N6F
Block protection
M29DW640F
Note:
RP can be either at VIH or at VID when using the In-System Technique to protect the
Extended Block.
Table 32.
Programmer technique bus operations, BYTE = VIH or VIL
Operation
E
G
W
Address Inputs
A0-A21
Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
Block (Group)
Protect(1)
VIL
VID VIL Pulse
A9 = VID, A12-A21 Block Address
Others = X
X
Chip Unprotect
VID
VID VIL Pulse
A9 = VID, A12 = VIH, A15 = VIH
Others = X
X
Block (Group)
Protect Verify
VIL
VIH
A0 = VIL, A1 = VIH, A2 = VIL, A3 = VIL,
A6 = VIL, A9 = VID,
A12-A21 Block address
Others = X
Pass = xx01h
Retry = xx00h.
Block (Group)
Unprotect Verify
VIL
VIH
A0 = VIL, A1 = VIH, A2 = VIL, A3 = VIL,
A6 = VIH, A9 = VID,
A12-A21 Block address
Others = X
Pass = xx00h
Retry = xx01h.
1.
Block Protection Groups are shown in Appendix D, Table 24.
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