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M29DW641F Datasheet(PDF) 20 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) 20 Page - Numonyx B.V

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Hardware Protection
M29DW641F
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4
Hardware Protection
The M29DW641F features hardware Protection/Unprotection. Refer to
Table 6 for details on
Hardware Block Protection/unprotection using VPP/WP and RP pins.
4.1
Write Protect
The VPP/WP pin protects the four outermost parameter blocks (refer to Section 2: Signal
descriptions for a detailed description of the signals).
4.2
Temporary Block Unprotect
When held at VID, the Reset/Block Temporary Unprotect pin, RP, will temporarily unprotect
all the blocks previously protected using a High voltage Block Protection technique.
Table 6.
Hardware Protection(1)
1.
The temporary unprotection is valid only for the blocks that have been protected using the High voltage
Protection Technique (see
Appendix D: High voltage Block Protection). The blocks protected using a
Software Protection method (Standard or Password) do not follow this rules.
VPP/WP
RP
Function
VIL
VIH
4 outermost parameter blocks protected from Program/Erase
Operations
VID
All blocks temporarily unprotected except the 4 outermost
blocks
VIH or VID
VID
All blocks temporarily unprotected
VPPH
VIH or VID
All blocks temporarily unprotected


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