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M29W800DB45M6E 参数 Datasheet PDF下载

M29W800DB45M6E图片预览
型号: M29W800DB45M6E
PDF下载: 下载PDF文件 查看货源
内容描述: 8兆位( 1兆位×8或512千位×16 ,引导块) 3 V电源快闪记忆体 [8-Mbit (1 Mbit x 8 or 512 Kbits x 16, boot block) 3 V supply flash memory]
分类和应用:
文件页数/大小: 52 页 / 1105 K
品牌: NUMONYX [ NUMONYX B.V ]
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Block protection
Figure 21. In-system equipment chip unprotect flowchart
START
PROTECT ALL BLOCKS
Set-up
M29W800DT, M29W800DB
n=0
CURRENT BLOCK = 0
RP = VID
WRITE 60h
ANY ADDRESS WITH
A0 = VIL, A1 = VIH, A6 = VIH
Unprotect
WRITE 60h
ANY ADDRESS WITH
A0 = VIL, A1 = VIH, A6 = VIH
Wait 10ms
WRITE 40h
ADDRESS = CURRENT BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIH
Verify
Wait 4µs
READ DATA
ADDRESS = CURRENT BLOCK ADDRESS
A0 = VIL, A1 = VIH, A6 = VIH
INCREMENT
CURRENT BLOCK
NO
DATA
=
00h
YES
NO
++n
= 1000
YES
RP = VIH
LAST
BLOCK
YES
RP = VIH
NO
End
ISSUE READ/RESET
COMMAND
ISSUE READ/RESET
COMMAND
FAIL
PASS
AI03472
50/52