m29dw641f STMicroelectronics, m29dw641f Datasheet - Page 20

• Manufacturer Part Number: m29dw641f
• Description: 64 Mbit 4mb X16, Multiple Bank, Boot Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

Hardware Protection
4
4.1
4.2
20/80
Hardware Protection
The M29DW641F features hardware Protection/Unprotection. Refer to
Hardware Block Protection/unprotection using V
Write Protect
The V
descriptions
Temporary Block Unprotect
When held at V
all the blocks previously protected using a High voltage Block Protection technique.
Table 6.
1. The temporary unprotection is valid only for the blocks that have been protected using the High voltage
Protection Technique (see
Software Protection method (Standard or Password) do not follow this rules.
V
V
IH
PP
V
PP
V
PPH
or V
/WP
IL
/WP pin protects the four outermost parameter blocks (refer to
ID
for a detailed description of the signals).
Hardware Protection
ID
, the Reset/Block Temporary Unprotect pin, RP, will temporarily unprotect
V
IH
V
V
V
RP
or V
IH
ID
ID
Appendix D: High voltage Block
ID
4 outermost parameter blocks protected from Program/Erase
Operations
All blocks temporarily unprotected except the 4 outermost
blocks
All blocks temporarily unprotected
All blocks temporarily unprotected
(1)
PP
/WP and RP pins.
Protection). The blocks protected using a
Function
Table 6
Section 2: Signal
M29DW641F
for details on