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參數(shù)資料
| 型號： | S29NS032JPLBJW000 |
| 廠商： | Spansion Inc. |
| 英文描述： | 110 nm CMOS 1.8-Volt only Simultaneous Read/Write, Burst Mode Flash Memories |
| 中文描述： | 110納米CMOS 1.8伏只有同時讀/寫，突發(fā)模式閃存 |
| 文件頁數(shù)： | 39/85頁 |
| 文件大?。?/td> | 799K |
| 代理商： | S29NS032JPLBJW000 |
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March 22, 2006 S29NS-J_00_A10
S29NS-J
35
D a t a S h e e t
Table 12. Wait States for Handshaking
Note:
In the 8-, 16- and 32-word burst read modes, the address pointer does not cross 64-word boundaries when wrap around
is enabled (at address 3Fh, and at addresses offset from 3Fh by multiples of 64).
The autoselect function allows the host system to determine whether the flash device is enabled
for handshaking. See the
“Autoselect Command Sequence”
section for more information.
Sector Lock/Unlock Command Sequence
The sector lock/unlock command sequence allows the system to determine which sectors are pro-
tected from accidental writes. When the device is first powered up, all sectors are locked. To
unlock a sector, the system must write the sector lock/unlock command sequence. Two cycles are
first written: addresses are don’t care and data is 60h. During the third cycle, the sector address
(SLA) and unlock command (60h) is written, while specifying with address A6 whether that sector
should be locked (A6 = V
IL
) or unlocked (A6 = V
IH
). After the third cycle, the system can continue
to lock or unlock additional cycles, or exit the sequence by writing F0h (reset command).
Note that the last two outermost boot sectors can be locked by taking the WP# signal to V
IL
. Also,
if A
cc
is at V
IL
all sectors are locked; if the A
cc
input is at V
ID
, all sectors are unlocked.
Reset Command
Writing the reset command resets the banks to the read or erase-suspend-read mode. Address
bits are don’t cares for this command.
The reset command may be written between the sequence cycles in an erase command sequence
before erasing begins. This resets the bank to which the system was writing to the read mode.
Once erasure begins, however, the device ignores reset commands until the operation is
complete.
The reset command may be written between the sequence cycles in a program command se-
quence before programming begins. This resets the bank to which the system was writing to the
read mode. If the program command sequence is written to a bank that is in the Erase Suspend
mode, writing the reset command returns that bank to the erase-suspend-read mode. Once pro-
gramming begins, however, the device ignores reset commands until the operation is complete.
The reset command may be written between the sequence cycles in an autoselect command se-
quence. Once in the autoselect mode, the reset command must be written to return to the read
mode. If a bank entered the autoselect mode while in the Erase Suspend mode, writing the reset
command returns that bank to the erase-suspend-read mode.
If DQ5 goes high during a program or erase operation, writing the reset command returns the
banks to the read mode (or erase-suspend-read mode if that bank was in Erase Suspend).
Conditions at Address
Typical No. of Clock Cycles after AVD# Low
40 MHz
54/66 MHz
Initial address is even
4
5
Initial address is odd
5
6
Initial address is even,
and is at boundary crossing (
Note
)
6
7
Initial address is odd,
and is at boundary crossing*
7
8
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相關代理商/技術參數(shù) |
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| S29NS032JPLBJW002 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:110 nm CMOS 1.8-Volt only Simultaneous Read/Write, Burst Mode Flash Memories |
| S29NS032JPLBJW003 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:110 nm CMOS 1.8-Volt only Simultaneous Read/Write, Burst Mode Flash Memories |
| S29NS064J0LBAW00 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:110 nm CMOS 1.8-Volt only Simultaneous Read/Write, Burst Mode Flash Memories |
| S29NS064J0LBAW000 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Burst Mode Flash Memories |
| S29NS064J0LBAW002 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Burst Mode Flash Memories |
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