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S29AL032D70BFI030 参数 Datasheet PDF下载

S29AL032D70BFI030图片预览
型号: S29AL032D70BFI030
PDF下载: 下载PDF文件 查看货源
内容描述: 32兆位CMOS 3.0伏只快闪记忆体 [32 Megabit CMOS 3.0 Volt-only Flash Memory]
分类和应用:
文件页数/大小: 69 页 / 1731 K
品牌: SPANSION [ SPANSION ]
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A d v a n c e I n f o r m a t i 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 V . During this mode,  
ID  
formerly protected sectors can be programmed or erased by selecting the sector addresses. Once  
V
is removed from the RESET# pin, all the previously protected sectors are protected again.  
ID  
shows the algorithm, and Figure 24, on page 58 shows the timing diagrams, for this feature.  
START  
RESET# = VID  
(Note 1)  
Perform Erase or  
Program Operations  
RESET# = VIH  
Temporary Sector  
Unprotect Completed  
(Note 2)  
Notes:  
1. All protected sectors unprotected.  
2. All previously protected sectors are protected once  
again.  
Figure 1. Temporary Sector Unprotect Operation  
24  
S29AL032D  
S29AL032D_00_A3 June 13, 2005