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F49L320BA 参数 Datasheet PDF下载

F49L320BA图片预览
型号: F49L320BA
PDF下载: 下载PDF文件 查看货源
内容描述: 32兆位( 4M ×8 / 2M ×16 ) 3V只有CMOS闪存 [32 Mbit (4M x 8/2M x 16) 3V Only CMOS Flash Memory]
分类和应用: 闪存
文件页数/大小: 55 页 / 544 K
品牌: ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
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ESMT  
F49L320UA/F49L320BA  
Operation Temperature Condition -40°C~85°C  
Figure 18. Sector Protection Algorithm (A9,  
Control)  
OE  
Start  
Set up sector address  
PLSCNT = 1  
OE = VID, A9 = VID, CE = VIL  
A6 = VIL  
Activate WE Pluse  
Time out 150us  
Set WE = VIH , CE = OE = VIL  
A9 should remain VID  
Read from Sector  
Address = SA, A0=1, A1 = 1  
No  
No  
Data = 01H?  
PLSCNT = 32?  
Yes  
Device Failed  
Yes  
Protect Another  
Sector?  
Remove VID from A9  
Write reset command  
Sector Protection  
Complete  
Elite Semiconductor Memory Technology Inc.  
Publication Date : Sep. 2008  
Revision: 1.1  
43/55  
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