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AM29F016-120EC 参数 Datasheet PDF下载

AM29F016-120EC图片预览
型号: AM29F016-120EC
PDF下载: 下载PDF文件 查看货源
内容描述: 16兆位( 2,097,152 ×8位) CMOS 5.0伏只,扇区擦除闪存 [16-Megabit (2,097,152 x 8-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory]
分类和应用: 闪存内存集成电路光电二极管
文件页数/大小: 36 页 / 220 K
品牌: AMD [ AMD ]
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Program Algorithm. Writing the Erase Suspend com-  
mand during the Sector Erase time-out results in imme-  
diate termination of the time-out period and suspension  
of the erase operation.  
pended. Successively reading from the erase-sus-  
pended sector while the device is in the  
erase-suspend-read mode will cause DQ2 to toggle.  
(See the section on DQ2).  
Any other command written during the Erase Suspend  
mode will be ignored except the Erase Resume com-  
mand. Writing the Erase Resume command resumes  
the erase operation. The addresses are “don’t-cares”  
when writing the Erase Suspend or Erase Resume  
command.  
After entering the erase-suspend-read mode, the user  
can program the device by writing the appropriate com-  
mand sequence for Byte Program. This program mode  
is known as the erase-suspend-program mode. Again,  
programming in this mode is the same as programming  
in the regular Byte Program mode except that the data  
must be programmed to sectors that are not erase-sus-  
pended. Successively reading from the erase-sus-  
pended sector while the device is in the  
erase-suspend-program mode will cause DQ2 to tog-  
gle. The end of the erase-suspended program opera-  
tion is detected by the RY/BY output pin, Data Polling  
of DQ7, or by the Toggle Bit I (DQ6) which is the same  
as the regular Byte Program operation. Note that DQ7  
must be read from the byte program address while  
DQ6 can be read from any address.  
When the Erase Suspend command is written during  
the Sector Erase operation, the device will take a max-  
imum of 15 µs to suspend the erase operation. When  
the device has entered the erase-suspended mode, the  
RY/BY output pin and the DQ7 bit will be at logic ‘1’,  
and DQ6 will stop toggling. The user must use the ad-  
dress of the erasing sector for reading DQ6 and DQ7 to  
determine if the erase operation has been suspended.  
Further writes of the Erase Suspend command are ig-  
nored.  
To resume the operation of Sector Erase, the Resume  
command (30H) should be written. Any further writes of  
the Resume command at this point will be ignored. An-  
other Erase Suspend command can be written after the  
chip has resumed erasing.  
When the erase operation has been suspended, the  
device defaults to the erase-suspend-read mode.  
Reading data in this mode is the same as reading from  
the standard read mode except that the data must be  
read from sectors that have not been erase-sus-  
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