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M29W400T Datasheet(PDF) 27 Page - STMicroelectronics

Part No. M29W400T
Description  4 Mbit 512Kb x8 or 256Kb x16, Boot Block Low Voltage Single Supply Flash Memory
Download  34 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W400T Datasheet(HTML) 27 Page - STMicroelectronics

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BLOCK ADDRESS
on A12-A17
AI01875E
G, A9 = VID,
E= VIL
n= 0
Wait 4
µs
Wait 100
µs
W=VIL
W= VIH
E, G = VIH
VERIFY BLOCK PROTECTION
A0, A6 = VIL;A1 = VIH;A9 = VID
A12-A17 IDENTIFY BLOCK
A9 = VIH
++n
=25
START
FAIL
PASS
YES
NO
DATA
=
01h
YES
NO
A9 = VIH
Set-up
Protect
Verify
W= VIH
Wait 4
µs
Wait 60ns
G= VIL
VERIFY BLOCK
PROTECT STATUS
E= VIL
Figure 14. Block Protection Flowchart
27/34
M29W400T, M29W400B


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