參數(shù)資料
型號： S29GL032A90TAIR21
廠商： Spansion Inc.
英文描述： 64 MEGABIT 32MEGABIT 3.0 BOLT ONLY PAGE MODE FLASH MEMORY
中文描述： 64兆位32MEGABIT 3.0螺栓只頁面模式閃存
文件頁數(shù)： 27/88頁
文件大?。?/td> 1425K
代理商： S29GL032A90TAIR21
January 28, 2005 S29GLxxxA_00_A2
S29GLxxxA MirrorBit Flash Family
31
Advance
Information
method does not require VID. Refer to the Autoselect Command Sequence section
for more information.
Table 12. Autoselect Codes, (High Voltage Method)
Legend: L = Logic Low = VIL, H = Logic High = VIH, SA = Sector Address, X = Don’t care.
Sector Group Protection and Unprotection
The hardware sector group protection feature disables both program and erase
operations in any sector group (see Table 11-Table 20). The hardware sector
group unprotection feature re-enables both program and erase operations in pre-
viously protected sector groups. Sector group protection/unprotection can be
implemented via two methods.
Sector protection/unprotection requires VID on the RESET# pin only, and can be
implemented either in-system or via programming equipment. Figure 2 shows
the algorithms and Figure 24 shows the timing diagram. This method uses stan-
dard microprocessor bus cycle timing. For sector group unprotect, all unprotected
sector groups must first be protected prior to the first sector group unprotect
write cycle.
The device is shipped with all sector groups unprotected. Spansion offers the op-
tion of programming and protecting sector groups at its factory prior to shipping
the device through Spansion Programming Service. Contact a Spansion represen-
tative for details.
It is possible to determine whether a sector group is protected or unprotected.
See the Autoselect Mode section for details.
Description
CE# OE#
WE#
A22
to
A15
A14
to
A10
A9
A8
to
A7
A6
A5
to
A4
A3
to
A2
A1
A0
DQ8 to DQ15
DQ7 to DQ0
Model Number
BYTE# =
VIH
BYTE# =
VIL
R1, R2, R8, R9
R3, R4
R5, R6, R7
Manufacturer
ID: Spansion
Products
LL
H
X
VID X
L
X
L
00
X
01h
S29GL064A
Cycle 1
LL
H
X
VID XLX
L
H
22
X
7Eh
Cycle 2
H
L
22
X
0Ch
10h
13h
Cycle 3
H
22
X
01h
00h (-R4,
bottom boot)
01h (-R3, top
boot)
01h
S29
G
L032M
Cycle 1
LL
H
X
VID XLX
LL
H
22
X
7Eh
Cycle 2
H
L
22
X
1Dh
1Ah
Cycle 3
H
22
X
00h
00h (-R4,
bottom boot)
01h (-R3,
top boot)
Sector Group
Protection
Verification
LL
H
SA
X
VID XLXL
H
L
X
01h (protected),
00h (unprotected)
Secured Silicon
Sector Indicator
Bit (DQ7), WP#
protects highest
address sector
LL
H
X
VID XLXL
H
X
98h (factory locked),
18h (not factory locked)
Secured Silicon
Sector Indicator
Bit (DQ7), WP#
protects lowest
address sector
LL
H
X
VID XLXL
H
X
88h (factory locked),
08h (not factory locked)
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