參數(shù)資料
型號: F49L004UA-90N
廠商: Elite Semiconductor Memory Technology Inc.
英文描述: 4 Mbit (512K x 8) 3V Only CMOS Flash Memory
中文描述: 4兆位(為512k × 8)3V時僅閃存的CMOS
文件頁數(shù): 35/46頁
文件大小: 371K
代理商: F49L004UA-90N
EFS T
preliminary
F49L004UA / F49L004BA
Elite Flash Storage Technology Inc.
Publication Date : Aug. 2003
Revision: 0.2 35/46
Figure 18. Sector Protection Algorithm (A9,
OE
Control)
Start
Set up sector address
Data = 01H
Sector Protection
Complete
Activate WE Pluse
Remove VID from A9
Write reset command
Device Failed
Protect Another
Sector
Yes
Yes
No
No
PLSCNT = 1
OE = V
ID
, A9 = V
ID
, CE = V
IL
A6 = V
IL
Time out 150us
Set WE = V
IH
, CE = OE = V
IL
A9 should remain V
ID
Read from Sector
Address = SA, A0 = 1, A1 = 1
PLSCNT = 32
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