s71gs256nc0bawak0 Meet Spansion Inc., s71gs256nc0bawak0 Datasheet - Page 53

• Manufacturer Part Number: s71gs256nc0bawak0
• Description: Stacked Multi-chip Product Mcp 256/128 Megabit 16/8m X 16-bit Cmos 3.0 Volt Vcc And 1.8 V Vio Mirrorbit Tm Uniform Sector Page-mode Flash Memory With 64/32 Megabit 4/2m X 16-bit 1.8v Psram
• Manufacturer: Meet Spansion Inc.

Legend: L = Logic Low = V
December 15, 2004 S29GLxxxN_MCP_A1
Manufacturer ID:
Spansion Product
Sector Group
Protection Verification
Secured Silicon Sector
I ndicator Bit (DQ7),
WP# protects highest
address sector
Secured Silicon Sector
I ndicator Bit (DQ7),
WP# protects lowest
address sector
Sector Protection
Description
Cycle 1
Cycle 2
Cycle 3
Cycle 1
Cycle 2
Cycle 3
Cycle 1
Cycle 2
Cycle 3
The device features several levels of sector protection, which can disable both the
program and erase operations in certain sectors or sector groups:
Persistent Sector Protection
A command sector protection method that replaces the old 12 V controlled pro-
tection method.
Password Sector Protection
A highly sophisticated protection method that requires a password before
changes to certain sectors or sector groups are permitted
WP# Hardware Protection
A write protect pin that can prevent program or erase operations in the outermost
sectors.
The WP# Hardware Protection feature is always available, independent of the
software managed protection method chosen.
Selecting a Sector Protection Mode
All parts default to operate in the Persistent Sector Protection mode. The cus-
tomer must then choose if the Persistent or Password Protection method is most
desirable. There are two one-time programmable non-volatile bits that define
which sector protection method will be used. If the customer decides to continue
CE#
IL
L
L
L
L
L
L
L
, H = Logic High = V
A d v a n c e
OE#
Table 5. Autoselect Codes, (High Voltage Method)
L
L
L
L
L
L
L
WE
#
H
H
H
H
H
H
H
A22
A15
S29GLxxxN MirrorBit
SA
to
X
X
X
X
X
X
IH
I n f o r m a t i o n
A14
A10
to
X
X
X
X
X
X
X
, SA = Sector Address, X = Don’t care.
V
V
V
V
V
V
V
A9
ID
ID
ID
ID
ID
ID
ID
A8
A7
to
X
X
X
X
X
X
X
A6
TM
L
L
L
L
L
L
L
Flash Family
A5
A4
to
X
X
X
X
X
X
X
A3
A2
to
H
H
H
H
H
H
L
L
L
L
L
L
L
A1
H
H
H
H
H
H
H
H
H
L
L
L
L
A0
H
H
H
H
H
H
H
H
L
L
L
L
L
DQ8 to
DQ15
00
22
22
22
22
22
22
22
22
22
X
X
X
18h (not factory locked)
08h (not factory locked)
98h (factory locked),
88h (factory locked),
00h (unprotected)
01h (protected),
DQ7 to DQ0
01h
7Eh
23h
01h
7Eh
22h
01h
7Eh
21h
01h
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