S29GL256N SPANSION [SPANSION], S29GL256N Datasheet - Page 15
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S29GL256N
Manufacturer Part Number
S29GL256N
Description
MirrorBit Flash Family
Manufacturer
SPANSION [SPANSION]
Datasheet
1.S29GL256N.pdf
(110 pages)
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Device Bus Operations
Legend: L = Logic Low = V
Address, A
Notes:
1. Addresses are AMax:A0 in word mode; A
2. If WP# = V
3. D
May 13, 2004 27631A4
Read
Write (Program/Erase)
Accelerated Program
Standby
Output Disable
Reset
protected or unprotected as determined by the method described in “Write Protect (WP#)”. All sectors are
unprotected when shipped from the factory (The SecSi Sector may be factory protected depending on version
ordered.)
IN
or D
Operation
Word/Byte Configuration
VersatileIO
IN
OUT
= Address In, D
IL
as required by command sequence, data polling, or sector protect algorithm (see Figure 2).
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.
, the first or last sector group remains protected. If WP# = V
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.
The VersatileIO
that the device generates and tolerates on CE# and DQ I/Os to the same voltage
TM
(V
IL
V
0.3 V
CE#
A d v a n c e
CC
, H = Logic High = V
IN
IO
X
L
L
L
L
±
= Data In, D
) Control
TM
OE#
H
H
X
H
X
L
(V
IO
S29GLxxxN MirrorBitTM Flash Family
Table 1. Device Bus Operations
) control allows the host system to set the voltage levels
WE
#
H
H
X
X
L
L
Max
OUT
I n f o r m a t i o n
:A-1 in byte mode. Sector addresses are A
RESET#
IH
= Data Out
V
0.3 V
, V
CC
H
H
H
H
L
ID
±
= 11.5–12.5 V, V
WP#/
Note 2
ACC
V
H
X
X
X
HH
Addresses
(Note 2)
HH
A
A
A
= 11.5–12.5V, X = Don’t Care, SA = Sector
X
X
X
IN
IN
IN
IH
, the first or last sector will be
(Note 3)
(Note 3)
High-Z
High-Z
High-Z
DQ0–
D
DQ7
OUT
Max
:A16 in both modes.
BYTE#
High-Z
High-Z
High-Z
= V
(Note
(Note
D
OUT
3)
3)
IH
DQ8–DQ15
DQ15 = A-1
DQ8–DQ14
= High-Z,
BYTE#
High-Z
High-Z
High-Z
= V
IL
15