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參數(shù)資料
| 型號(hào)： | S71WS512N80BAIZZ3 |
| 廠商： | Spansion Inc. |
| 英文描述： | Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
| 中文描述： | 堆疊式多芯片產(chǎn)品（MCP）的閃存和移動(dòng)存儲(chǔ)芯片的CMOS 1.8伏特 |
| 文件頁數(shù)： | 59/142頁 |
| 文件大?。?/td> | 1996K |
| 代理商： | S71WS512N80BAIZZ3 |
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June 28, 2004 S71WS512NE0BFWZZ_00_A1
S29WSxxxN MirrorBit Flash Family For Multi-chip Products (MCP)
59
A d v a n c e I n f o r m a t i o n
erase. The Embedded Erase algorithm automatically preprograms and verifies the
entire memory for an all zero data pattern prior to electrical erase. The system is
not required to provide any controls or timings during these operations. The
"
Command Definition Summary
" section shows the address and data require-
ments for the chip erase command sequence.
When the Embedded Erase algorithm is complete, that bank returns to the read
mode and addresses are no longer latched. The system can determine the status
of the erase operation by using DQ7 or DQ6/DQ2. Refer to
“Write Operation Sta-
tus”
for information on these status bits.
Any commands written during the chip erase operation are ignored. However,
note that a
hardware reset
immediately terminates the erase operation. If that
occurs, the chip erase command sequence should be reinitiated once that bank
has returned to reading array data, to ensure data integrity.
The host system may also initiate the chip erase command sequence while the
device is in the unlock bypass mode. The command sequence is two cycles in
length instead of six cycles.
Figure 4
illustrates the algorithm for the erase operation. Refer to the "
Erase/Pro-
gram Operations @ V
IO
= 1.8 V
" section for parameters and timing diagrams.
Sector Erase Command Sequence
Sector erase is a six bus cycle operation or, in the unlock bypass mode, a four-
cycle operation. The sector erase command sequence is initiated by writing two
unlock cycles, followed by a set-up command. Two additional unlock cycles are
written, and are then followed by the address of the sector to be erased, and the
sector erase command. The "
Command Definition Summary
" section shows the
address and data requirements for the sector erase command sequence.
The device does not require the system to preprogram prior to erase. The Em-
bedded Erase algorithm automatically programs and verifies the entire memory
for an all zero data pattern prior to electrical erase. The system is not required to
provide any controls or timings during these operations.
After the command sequence is written, a sector erase time-out of no less than
50 μs occurs. During the time-out period, additional sector addresses and sector
erase commands may be written. Loading the sector erase buffer may be done
in any sequence, and the number of sectors may be from one sector to all sectors.
The time between these additional cycles must be less than 50 μs, otherwise era-
sure may begin. Any sector erase address and command following the exceeded
time-out may or may not be accepted. It is recommended that processor inter-
rupts be disabled during this time to ensure all commands are accepted. The
interrupts can be re-enabled after the last Sector Erase command is written. Any
command other than Sector Erase or Erase Suspend during the time-out period
resets that bank to the read mode. The system must rewrite the command se-
quence and any additional addresses and commands.
The system can monitor DQ3 to determine if the sector erase timer has timed out
(See the "
DQ3: Sector Erase Timer
" section.) The time-out begins from the rising
edge of the final WE# pulse in the command sequence.
When the Embedded Erase algorithm is complete, the bank returns to reading
array data and addresses are no longer latched. Note that while the Embedded
Erase operation is in progress, the system can read data from the non-erasing
bank. The system can determine the status of the erase operation by reading
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相關(guān)代理商/技術(shù)參數(shù) |
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| S71WS512N80BAWZZ0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
| S71WS512N80BAWZZ2 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
| S71WS512N80BAWZZ3 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
| S71WS512N80BFEZZ0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
| S71WS512N80BFEZZ2 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt |
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