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MX29LV040CTC-70G 参数 Datasheet PDF下载

MX29LV040CTC-70G图片预览
型号: MX29LV040CTC-70G
PDF下载: 下载PDF文件 查看货源
内容描述: 4M- BIT [ 512K ×8 ] CMOS单电压3V只相当于行业FLASH MEMORY [4M-BIT [512K x 8] CMOS SINGLE VOLTAGE 3V ONLY EQUAL SECTOR FLASH MEMORY]
分类和应用: 闪存存储内存集成电路光电二极管
文件页数/大小: 52 页 / 485 K
品牌: Macronix [ MACRONIX INTERNATIONAL ]
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MX29LV040C  
CHIP UNPROTECT  
The MX29LV040C also features the chip unprotect mode,  
so that all sectors are unprotected after chip unprotect  
is completed to incorporate any changes in the code. It  
is recommended to protect all sectors before activating  
chip unprotect mode.  
To activate this mode, the programming equipment must  
force VID on control pin OE# and address pin A9. The  
CE# pins must be set at VIL. Pins A6 must be set to  
VIH. Refer to chip unprotect algorithm and waveform for  
the chip unprotect algorithm. The unprotected mecha-  
nism begins on the falling edge of the WE# pulse and is  
terminated on the rising edge.  
It is also possible to determine if the chip is unprotected  
in the system by writing the Read Silicon ID command.  
Performing a read operation with A1=VIH, it will produce  
00H at data outputs(Q0-Q7) for an unprotected sector.  
It is noted that all sectors are unprotected after the chip  
unprotect algorithm is completed.  
P/N:PM1149  
REV. 1.3, APR. 24, 2006  
16