欢迎访问ic37.com |
会员登录 免费注册
发布采购

AM29F010B-90JF 参数 Datasheet PDF下载

AM29F010B-90JF图片预览
型号: AM29F010B-90JF
PDF下载: 下载PDF文件 查看货源
内容描述: 1兆位( 128千×8位) CMOS 5.0伏只,统一部门快闪记忆体 [1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory]
分类和应用:
文件页数/大小: 33 页 / 1007 K
品牌: SPANSION [ SPANSION ]
 浏览型号AM29F010B-90JF的Datasheet PDF文件第10页浏览型号AM29F010B-90JF的Datasheet PDF文件第11页浏览型号AM29F010B-90JF的Datasheet PDF文件第12页浏览型号AM29F010B-90JF的Datasheet PDF文件第13页浏览型号AM29F010B-90JF的Datasheet PDF文件第15页浏览型号AM29F010B-90JF的Datasheet PDF文件第16页浏览型号AM29F010B-90JF的Datasheet PDF文件第17页浏览型号AM29F010B-90JF的Datasheet PDF文件第18页  
D A T A S H E E T  
Figure 2 illustrates the algorithm for the erase opera-  
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 Command Sequence”  
for more information.  
tion. Refer to the Erase/Program Operations tables in  
the “AC Characteristics” section for parameters, and to  
the Sector Erase Operations Timing diagram for timing  
waveforms.  
Erase Suspend/Erase Resume Commands  
The Erase Suspend command allows the system to in-  
terrupt a sector erase operation and then read data  
from, or program data to, any sector not selected for  
erasure. This command is valid only during the sector  
erase operation, including the 50 µs time-out period  
during the sector erase command sequence. The  
Erase Suspend command is ignored if written during  
the chip erase operation or Embedded Program algo-  
rithm. Writing the Erase Suspend command during the  
Sector Erase time-out immediately terminates the  
time-out period and suspends the erase operation. Ad-  
dresses are “don’t-cares” when writing the Erase  
Suspend command.  
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 de-  
vice has resumed erasing.  
START  
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 ter-  
minates the time-out period and suspends the erase  
operation.  
Write Erase  
Command Sequence  
Data Poll  
from System  
After the erase operation has been suspended, the  
system can read array data from any sector not se-  
lected 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 produces sta-  
tus data on DQ7–DQ0. The system can use DQ7 to  
determine if a sector is actively erasing or is erase-sus-  
pended. See “Write Operation Status” for information  
on these status bits.  
Embedded  
Erase  
algorithm  
in progress  
No  
Data = FFh?  
Yes  
Erasure Completed  
After an erase-suspended program operation is com-  
plete, 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 oper-  
ation. See “Write Operation Status” for more  
information.  
Notes:  
1. See the appropriate Command Definitions table for erase  
command sequence.  
2. See “DQ3: Sector Erase Timer” for more information.  
The system may also write the autoselect command  
sequence when the device is in the Erase Suspend  
Figure 2. Erase Operation  
12  
Am29F010B  
Am29F010B_00_C7 October 31, 2006