參數(shù)資料
型號： S71GL128NB0
廠商： Spansion Inc.
英文描述： Stacked Multi-chip Product (MCP)
中文描述： 堆疊式多芯片產(chǎn)品（MCP）
文件頁數(shù)： 23/147頁
文件大?。?/td> 1655K
代理商： S71GL128NB0
June 14, 2004 S29GLxxxN_00A4
S29GLxxxN MirrorBit
TM
Flash Family
23
A d v a n c e I n f o r m a t i o n
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.
Table 1. Device Bus Operations
Legend:
L = Logic Low = V
IL
, H = Logic High = V
IH
, V
ID
= 11.5–12.5 V, V
HH
= 11.5–12.5V, X = Don’t Care, SA = Sector
Address, A
IN
= Address In, D
IN
= Data In, D
OUT
= Data Out
Notes:
1. Addresses are AMax:A0 in word mode; A
Max
:A-1 in byte mode. Sector addresses are A
Max
:A16 in both modes.
2. If WP# = V
IL
, the first or last sector group remains protected. If WP# = V
IH
, the first or last sector will be
protected or unprotected as determined by the method described in “Write Protect (WP#)”. All sectors are
unprotected when shipped from the factory (The Secured Silicon Sector may be factory protected depending
on version ordered.)
3. D
IN
or D
OUT
as required by command sequence, data polling, or sector protect algorithm (see Figure 2).
Word/Byte Configuration
The BYTE# pin controls whether the device data I/O pins operate in the byte or
word configuration. If the BYTE# pin is set at logic ‘1’, the device is in word con-
figuration, DQ0–DQ15 are active and controlled by CE# and OE#.
If the BYTE# pin is set at logic ‘0’, the device is in byte configuration, and only
data I/O pins DQ0–DQ7 are active and controlled by CE# and OE#. The data I/
O pins DQ8–DQ14 are tri-stated, and the DQ15 pin is used as an input for the
LSB (A-1) address function.
Requirements for Reading Array Data
To read array data from the outputs, the system must drive the CE# and OE#
pins to V
IL
. CE# is the power control and selects the device. OE# is the output
control and gates array data to the output pins. WE# should remain at V
IH
.
Operation
CE#
OE#
WE
#
RESET#
WP#
ACC
Addresses
(Note 2)
DQ0–
DQ7
DQ8–DQ15
BYTE#
= V
IH
BYTE#
= V
IL
Read
L
L
H
H
X
X
A
IN
D
OUT
D
OUT
DQ8–DQ14
= High-Z,
DQ15 = A-1
Write (Program/Erase)
L
H
L
H
(Note 2)
X
A
IN
(Note 3)
(Note
3)
Accelerated Program
L
H
L
H
(Note 2)
V
HH
A
IN
(Note 3)
(Note
3)
Standby
V
CC
±
0.3 V
X
X
V
CC
±
0.3 V
X
H
X
High-Z
High-Z
High-Z
Output Disable
L
H
H
H
X
X
X
High-Z
High-Z
High-Z
Reset
X
X
X
L
X
X
X
High-Z
High-Z
High-Z
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