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11AA011-ISN 参数 Datasheet PDF下载

11AA011-ISN图片预览
型号: 11AA011-ISN
PDF下载: 下载PDF文件 查看货源
内容描述: 1K - 16K UNI / O ?串行EEPROM系列数据手册 [1K-16K UNI/O® Serial EEPROM Family Data Sheet]
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: 44 页 / 801 K
品牌: MICROCHIP [ MICROCHIP ]
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11AAXXX/11LCXXX  
5.0  
DATA PROTECTION  
6.0  
POWER-ON STATE  
The following protection has been implemented to  
prevent inadvertent writes to the array:  
The 11XX powers on in the following state:  
• The device is in low-power Shutdown mode,  
requiring a low-to-high transition on SCIO to enter  
Idle mode  
• The Write Enable Latch (WEL) is reset on power-  
up  
• A Write Enable (WREN) instruction must be issued  
to set the write enable latch  
• The Write Enable Latch (WEL) is reset  
• The internal Address Pointer is undefined  
• After a write, ERAL, SETAL, or WRSR command,  
the write enable latch is reset  
• A low-to-high transition, standby pulse and subse-  
quent high-to-low transition on SCIO (the first low  
pulse of the header) are required to enter the  
active state  
• Commands to access the array or write to the  
status register are ignored during an internal write  
cycle and programming is not affected  
.
TABLE 6-1:  
WEL  
WRITE PROTECT FUNCTIONALITY MATRIX  
Protected Blocks  
Unprotected Blocks  
Status Register  
0
1
Protected  
Protected  
Protected  
Writable  
Protected  
Writable  
2010 Microchip Technology Inc.  
Preliminary  
DS22067H-page 17  
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