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AS29F040ECA-60/883C 参数 Datasheet PDF下载

AS29F040ECA-60/883C图片预览
型号: AS29F040ECA-60/883C
PDF下载: 下载PDF文件 查看货源
内容描述: 512K ×8 FLASH制服行业5.0V FLASH MEMORY [512K x 8 FLASH UNIFORM SECTOR 5.0V FLASH MEMORY]
分类和应用:
文件页数/大小: 27 页 / 1428 K
品牌: AUSTIN [ AUSTIN SEMICONDUCTOR ]
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FLASH  
AS29F040  
Austin Semiconductor, Inc.  
After an erase-suspended program operation is complete, array. When the device exits the autoselect mode, the device  
the system can once again read array data within reverts to the Erase Suspend mode, and is ready for another  
non-suspended sectors. The system can determine the status valid operation. See “Autoselect Command Sequence” for more  
of the program operation using the DQ7 or DQ6 status bits, just information.  
as in the standard program operation. See “Write Operation  
Status” for more information.  
The system must write the Erase Resume command  
(address bits are “don’t care”) to exit the erase suspend mode  
The system may also write the autoselect command and continue the sector erase operation. Further writes of the  
sequence when the device is in the Erase Suspend mode. The Resume command are ignored. Another Erase Suspend  
device allows reading autoselect codes even at addresses within command can be written after the device has resumed erasing.  
erasing sectors, since the codes are not stored in the memory  
TABLE 4: Command Definitions  
2,3,4  
Bus Cycles  
Third  
1
Command Sequence  
First  
Second  
Fourth  
Fifth  
Sixth  
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data  
5
1
1
RA  
RD  
F0  
Read  
6
XXX  
Reset  
Manufacturer ID  
Device ID  
4
4
555  
555  
AA  
AA  
2AA  
2AA  
55  
55  
555  
555  
90  
90  
X00  
X01  
01  
A4  
7
Autoselect  
SA  
X02  
00  
8
4
555  
AA  
2AA  
55  
555  
90  
Sector Protect Verify  
01  
PD  
AA  
AA  
Program  
4
6
6
555  
555  
555  
AA  
AA  
AA  
2AA  
2AA  
2AA  
55  
55  
55  
555  
555  
555  
A0  
80  
80  
PA  
555  
555  
Chip Erase  
Sector Erase  
2AA  
2AA  
55  
55  
555  
SA  
10  
30  
9
1
1
XXX  
XXX  
B0  
30  
Erase Suspend  
10  
Erase Resume  
LEGEND:  
X = Don’t Care.  
RA = Address of the memory location to be read.  
RD = Data read from location RA during read operation.  
PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE\ or CE\ pulse, whichever happens later.  
PD = Data to be programmed at location PA. Data latches on the rising edge of WE\ or CE\ pulse, whichever happens first.  
SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A18-A16 uniquely select any sector.  
NOTES:  
1. See Table 1 for description of bus operations.  
2. All values are in hexadecimal.  
3. Except when reading array or autoselect data, all command bus cycles are write operations.  
4. Address bits A18 - A11 are don’t care for unlock and command cycles, unless SA or PA required.  
5. No unlock or command cycles required when reading array data.  
6. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high (while the device is  
providing status data).  
7. The fourth cycle of the autoselect command sequence is a read cycle.  
8. The data is 00h for an unprotected sector and 01h for a protected sector. See “Autoselect Command Sequence” for more information.  
9. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend  
command is valid only during a sector erase operation.  
10. The Erase Resume command is valid only during the Erase Suspend mode.  
AS29F040  
AustinSemiconductor,Inc.reservestherighttochangeproductsorspecificationswithoutnotice.  
Rev. 2.2 09/07  
9
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