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M29W400DB70N1T 参数 Datasheet PDF下载

M29W400DB70N1T图片预览
型号: M29W400DB70N1T
PDF下载: 下载PDF文件 查看货源
内容描述: 4兆位( 512 KB ×8或256 KB ×16 ,引导块) 3 V电源闪存 [4 Mbit (512 Kb x 8 or 256 Kb x 16, boot block) 3 V supply Flash memory]
分类和应用: 闪存存储内存集成电路光电二极管
文件页数/大小: 48 页 / 1025 K
品牌: NUMONYX [ NUMONYX B.V ]
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M29W400DT, M29W400DB
Figure 21. In-system equipment block protect flowchart
START
Set-up
n=0
RP = VID
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
Block protection
Protect
WRITE 60h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
Wait 100 µs
WRITE 40h
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
Verify
Wait 4 µs
READ DATA
ADDRESS = BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIL
DATA
NO
=
01h
YES
RP = VIH
End
ISSUE READ/RESET
COMMAND
++n
= 25
YES
RP = VIH
ISSUE READ/RESET
COMMAND
NO
PASS
FAIL
AI03471
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