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11AA02UID 参数 Datasheet PDF下载

11AA02UID图片预览
型号: 11AA02UID
PDF下载: 下载PDF文件 查看货源
内容描述: [2K UNI/O® Serial EEPROM with Unique 32-Bit Serial Number]
分类和应用: 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件页数/大小: 32 页 / 666 K
品牌: MICROCHIP [ MICROCHIP ]
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11AA02UID  
The following is a list of conditions under which the  
write enable latch will be reset:  
4.4  
Write Enable (WREN) and Write  
Disable (WRDI) Instructions  
• Power-up  
The 11AA02UID contains a write enable latch. See  
Table 6-1 for the Write-Protect Functionality Matrix.  
This latch must be set before any write operation will be  
completed internally. The WRENinstruction will set the  
latch, and the WRDIinstruction will reset the latch.  
WRDIinstruction successfully executed  
WRSRinstruction successfully executed  
WRITEinstruction successfully executed  
ERALinstruction successfully executed  
SETALinstruction successfully executed  
Note:  
The WRENand WRDIinstructions must be  
terminated with a NoMAK following the  
command byte. If a NoMAK is not  
received at this point, the command will be  
considered invalid, and the device will go  
into Idle mode without responding with a  
SAK or executing the command.  
FIGURE 4-4:  
WRITE ENABLE COMMAND SEQUENCE  
Device Address  
Standby Pulse  
Start Header  
SCIO  
0 1 0 1 0 1 0 1  
1 0 1 0 0 0 0 0  
Command  
SCIO  
1 0 0 1 0 1 1 0  
FIGURE 4-5:  
WRITE DISABLE COMMAND SEQUENCE  
Device Address  
Standby Pulse  
Start Header  
SCIO  
SCIO  
0 1 0 1 0 1 0 1  
1 0 1 0 0 0 0 0  
Command  
1 0 0 1 0 0 0 1  
DS20005206A-page 12  
2013 Microchip Technology Inc.