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| 型號(hào)： | S29PL127J60 |
| 廠商： | Spansion Inc. |
| 英文描述： | CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory with Enhanced VersatileIO Control |
| 中文描述： | 3.0伏的CMOS只，同步讀/寫閃存與增強(qiáng)VersatileIO控制記憶 |
| 文件頁數(shù)： | 23/106頁 |
| 文件大小： | 1997K |
| 代理商： | S29PL127J60 |
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April 7, 200531107A62
S29PL127J/S29PL129J/S29PL064J/S29PL032J
21
P R E L I M I N A R Y
Device Bus Operations
This section describes the requirements and use of the device bus operations,
which are initiated through the internal command register. The command register
itself does not occupy any addressable memory location. The register is a latch
used to store the commands, along with the address and data information
needed to execute the command. The contents of the register serve as inputs to
the internal state machine. The state machine outputs dictate the function of the
device.
Table 1
lists the device bus operations, the inputs and control levels they
require, and the resulting output. The following subsections describe each of
these operations in further detail.
Legend:
L = Logic Low = V
IL
, H = Logic High = V
, V
= 11.5–12.5
V, V
HH
= 8.5–9.5
V, X = Don’t Care, SA = Sector
Address, A
IN
= Address In, D
IN
= Data In, D
OUT
= Data Out
Notes:
1. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the
"
High Voltage Sector Protection
" section section.
2. WP#/ACC must be high when writing to upper two and lower two sectors.
Table 1.
PL127J Device Bus Operations
Operation
CE#
OE#
WE#
RESET#
WP#/ACC
Addresses
(Amax–A0)
DQ15–
DQ0
Read
L
L
H
H
X
A
IN
D
OUT
Write
L
H
L
H
X (Note
2
)
A
IN
D
IN
Standby
V
±
0.3 V
X
X
V
±
0.3 V
X (Note
2
)
X
High-Z
Output Disable
L
H
H
H
X
X
High-Z
Reset
X
X
X
L
X
X
High-Z
Temporary Sector Unprotect (High Voltage)
X
X
X
V
ID
X
A
IN
D
IN
Table 2.
PL129J Device Bus Operations
Operation
CE1#
CE2#
OE#
WE#
RESET#
WP#/ACC
Addresses
(A21–A0)
DQ15–
DQ0
Read
L
H
L
H
H
X
A
IN
D
OUT
H
L
Write
L
H
H
L
H
X
(
Note 2
)
A
IN
D
IN
H
L
Standby
V
±
0.3 V
V
±
0.3 V
X
X
V
±
0.3 V
X
X
High-Z
Output Disable
L
L
H
H
H
X
X
High-Z
Reset
X
X
X
X
L
X
X
High-Z
Temporary Sector Unprotect
(High Voltage)
X
X
X
X
V
ID
X
A
IN
D
IN
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