參數(shù)資料
型號(hào): S29AL032D70BAE000
廠商: Spansion Inc.
英文描述: 32 Megabit CMOS 3.0 Volt-only Flash Memory
中文描述: 32兆位的CMOS 3.0伏只閃存
文件頁數(shù): 19/69頁
文件大小: 1970K
代理商: S29AL032D70BAE000
24
S29AL032D
S29AL032D_00_A3 June 13, 2005
Advan ce
In form ati o n
Temporary Sector Unprotect
This feature allows temporary unprotection of previously protected sectors to change data in-sys-
tem. The Sector Unprotect mode is activated by setting the RESET# pin to VID. During this mode,
formerly protected sectors can be programmed or erased by selecting the sector addresses. Once
VID is removed from the RESET# pin, all the previously protected sectors are protected again.
shows the algorithm, and Figure 24, on page 58 shows the timing diagrams, for this feature.
Figure 1. Temporary Sector Unprotect Operation
START
Perform Erase or
Program Operations
RESET# = VIH
Temporary Sector
Unprotect Completed
(Note 2)
RESET# = VID
(Note 1)
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
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