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M29W160ET90ZA6T 参数 Datasheet PDF下载

M29W160ET90ZA6T图片预览
型号: M29W160ET90ZA6T
PDF下载: 下载PDF文件 查看货源
内容描述: 16兆位(2MB ×8或1Mb的X16 ,引导块) 3V供应闪存 [16 Mbit (2Mb x8 or 1Mb x16, Boot Block) 3V Supply Flash Memory]
分类和应用: 闪存存储内存集成电路
文件页数/大小: 40 页 / 1035 K
品牌: NUMONYX [ NUMONYX B.V ]
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M29W160ET, M29W160EB  
Table 3. Bus Operations, BYTE = V  
IH  
Address Inputs  
A0-A19  
Data Inputs/Outputs  
DQ15A–1, DQ14-DQ0  
Operation  
Bus Read  
E
G
W
V
V
V
IH  
Cell Address  
Data Output  
Data Input  
Hi-Z  
IL  
IL  
IL  
IH  
IH  
V
V
V
V
V
Bus Write  
Command Address  
IL  
Output Disable  
Standby  
X
X
IH  
V
X
X
X
Hi-Z  
IH  
A0 = V , A1 = V , A9 = V ,  
Read Manufacturer  
Code  
IL  
IL  
ID  
V
V
V
V
V
V
0020h  
IL  
IL  
IL  
IL  
IH  
IH  
Others V or V  
IL  
IH  
A0 = V , A1 = V , A9 = V ,  
22C4h (M29W160ET)  
2249h (M29W160EB)  
IH  
IL  
ID  
Read Device Code  
Others V or V  
IL  
IH  
Note: X = V or V  
.
IH  
IL  
COMMAND INTERFACE  
All Bus Write operations to the memory are inter-  
preted by the Command Interface. Commands  
consist of one or more sequential Bus Write oper-  
ations. Failure to observe a valid sequence of Bus  
Write operations will result in the memory return-  
ing to Read mode. The long command sequences  
are imposed to maximize data security.  
The address used for the commands changes de-  
pending on whether the memory is in 16-bit or 8-  
bit mode. See either Table 4, or 5, depending on  
the configuration that is being used, for a summary  
of the commands.  
Read/Reset Command. The Read/Reset com-  
mand returns the memory to its Read mode where  
it behaves like a ROM or EPROM, unless other-  
wise stated. It also resets the errors in the Status  
Register. Either one or three Bus Write operations  
can be used to issue the Read/Reset command.  
The Read/Reset Command can be issued, be-  
tween Bus Write cycles before the start of a pro-  
gram or erase operation, to return the device to  
read mode. Once the program or erase operation  
has started the Read/Reset command is no longer  
accepted. The Read/Reset command will not  
abort an Erase operation when issued while in  
Erase Suspend.  
From the Auto Select mode the Manufacturer  
Code can be read using a Bus Read operation  
with A0 = V and A1 = V . The other address bits  
IL  
IL  
may be set to either V or V . The Manufacturer  
IL  
IH  
Code for Numonyx is 0020h.  
The Device Code can be read using a Bus Read  
operation with A0 = V and A1 = V . The other  
IH  
IL  
address bits may be set to either V or V . The  
IL IH  
Device Code for the M29W160ET is 22C4h and  
for the M29W160EB is 2249h.  
The Block Protection Status of each block can be  
read using a Bus Read operation with A0 = V ,  
IL  
A1 = V , and A12-A19 specifying the address of  
IH  
the block. The other address bits may be set to ei-  
ther V or V . If the addressed block is protected  
IL  
IH  
then 01h is output on Data Inputs/Outputs DQ0-  
DQ7, otherwise 00h is output.  
Program Command. The Program command  
can be used to program a value to one address in  
the memory array at a time. The command re-  
quires four Bus Write operations, the final write op-  
eration latches the address and data, and starts  
the Program/Erase Controller.  
If the address falls in a protected block then the  
Program command is ignored, the data remains  
unchanged. The Status Register is never read and  
no error condition is given.  
During the program operation the memory will ig-  
nore all commands. It is not possible to issue any  
command to abort or pause the operation. Typical  
program times are given in Table 6. Bus Read op-  
erations during the program operation will output  
the Status Register on the Data Inputs/Outputs.  
See the section on the Status Register for more  
details.  
Auto Select Command. The Auto Select com-  
mand is used to read the Manufacturer Code, the  
Device Code and the Block Protection Status.  
Three consecutive Bus Write operations are re-  
quired to issue the Auto Select command. Once  
the Auto Select command is issued the memory  
remains in Auto Select mode until a Read/Reset  
command is issued. Read CFI Query and Read/  
Reset commands are accepted in Auto Select  
mode, all other commands are ignored.  
After the program operation has completed the  
memory returns to the Read mode, unless an error  
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