參數(shù)資料
型號(hào)： S29AL004D
廠商： Spansion Inc.
英文描述： 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
中文描述： 4兆位（512 kX的8-Bit/256畝x 16位），3.0伏的CMOS只引導(dǎo)扇區(qū)閃存
文件頁(yè)數(shù)： 25/55頁(yè)
文件大小： 1481K
代理商： S29AL004D
February 18, 2005 S29AL004D_00_A1
S29AL004D
23
A d v a n c e I n f o r m a t i o n
Sector Erase time-out immediately terminates the time-out period and suspends
the erase operation. Addresses are
don’t-cares
when writing the Erase Suspend
command.
When the Erase Suspend command is written during a sector erase operation, the
device requires a maximum of 20 μs to suspend the erase operation. However,
when the Erase Suspend command is written during the sector erase time-out,
the device immediately terminates the time-out period and suspends the erase
operation.
After the erase operation is suspended, the system can read array data from or
program data to any sector not selected for erasure. (The device
erase suspends
all sectors selected for erasure.) Normal read and write timings and command
definitions apply. Reading at any address within erase-suspended sectors pro-
duces status data on DQ7–DQ0. The system can use DQ7, or DQ6 and DQ2
together, to determine if a sector is actively erasing or is erase-suspended. See
Write Operation Status on page 26
for information on these status bits.
After an erase-suspended program operation is complete, the system can once
again read array data within non-suspended sectors. The system can determine
the status of the program operation using the DQ7 or DQ6 status bits, just as in
the standard program operation. See
Write Operation Status on page 26
for
more information.
The system may also write the autoselect command sequence when the device
is in the Erase Suspend mode. The device allows reading autoselect codes even
at addresses within erasing sectors, since the codes are not stored in the memory
array. When the device exits the autoselect mode, the device reverts to the Erase
Suspend mode, and is ready for another valid operation. See
Autoselect Com-
mand Sequence on page 19
for more information.
The system must write the Erase Resume command (address bits are
don’t care
)
to exit the erase suspend mode and continue the sector erase operation. Further
writes of the Resume command are ignored. Another Erase Suspend command
can be written after the device has resumed erasing.
相關(guān)PDF資料
PDF描述
S29AL004D90BAI012 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90BAI013 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90BAI020 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90BAI022 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
S29AL004D90BAI023 4 Megabit (512 Kx 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29AL004D55MAIR10 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 55NS 44SOP - Rail/Tube
S29AL004D55MAIR20 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 55NS 44SOP - Rail/Tube
S29AL004D55TAI010 制造商:Spansion 功能描述:
S29AL004D55TAI020 制造商:Spansion 功能描述:IC,EEPROM,NOR FLASH,256KX16/512KX8,CMOS,TSSOP,48PIN,PLASTIC
S29AL004D55TAIR10 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 4MBIT 512KX8/256KX16 55NS 48TSOP - Trays
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