s71gl128nc0 Meet Spansion Inc., s71gl128nc0 Datasheet - Page 54

• Manufacturer Part Number: s71gl128nc0
• Description: Stacked Multi-chip Product Mcp 512/256/128 Megabit 32/16/8 M X 16-bit Cmos 3.0 Volt-only Mirrorbittm Page-mode Flash Memory With 64 Megabit 4m X 16-bit Psram
• Manufacturer: Meet Spansion Inc.

Legend: L = Logic Low = V
54
Manufacturer ID:
Spansion Product
Sector Group
Protection Verification
Secured Silicon Sector
Indicator Bit (DQ7),
WP# protects highest
address sector
Secured Silicon Sector
Indicator 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
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
A d v a n c e
A14
A10
to
, SA = Sector Address, X = Don’t care.
X
X
X
X
X
X
X
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
I n f o r m a t i o n
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
S29GLxxxN_MCP_A1 December 15, 2004
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