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M29DW641F Datasheet(PDF) 18 Page - Numonyx B.V

Part # M29DW641F
Description  64 Mbit (4Mb x16, Multiple Bank, Page, Boot Block) 3V Supply Flash Memory
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Manufacturer  NUMONYX [Numonyx B.V]
Direct Link  http://www.numonyx.com
Logo NUMONYX - Numonyx B.V

M29DW641F Datasheet(HTML) 18 Page - Numonyx B.V

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Bus Operations
M29DW641F
18/80
3.6.5
Temporary Unprotection of High voltage Protected Blocks
The RP pin can be used to temporarily unprotect all the blocks previously protected using
the In-System or the Programmer Protection technique (High voltage techniques).
Refer to
Section 2.7: Reset/Block Temporary Unprotect (RP) in the Section 2: Signal
descriptions.
Table 3.
Bus Operations(1)
1.
X = VIL or VIH.
Operation
E
G
W
Address Inputs
Data Inputs/Outputs
A21-A0
DQ15-DQ0
Bus Read
VIL
VIL
VIH
Cell Address
Data Output
Bus Write
VIL
VIH
VIL
Command Address
Data Input
Output Disable
X
VIH
VIH
XHi-Z
Standby
VIH
XX
X
Hi-Z
Table 4.
Read Electronic Signature(1)
1.
X = VIL or VIH.
Read cycle
E
G
W
Address Inputs
Data
Inputs/Outputs
A21-
A10
A9 A8 A7-A6 A5-A4 A3
A2
A1
A0
DQ15-DQ0
Manufacturer
code
VIL VIL VIH
XVID XVIL
XVIL VIL VIL VIL
0020h
Device code
(Cycle 1)
VIL
VIL VIL VIL VIH
227Eh
Device code
(Cycle 2)
VIH VIH VIH VIL
2203h
Device code
(Cycle 3)
VIH VIH VIH VIH
2200h
(M29DW641F)


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