參數(shù)資料
型號: MX29LV160T
廠商: Macronix International Co., Ltd.
英文描述: 16M-BIT [2Mx8/1Mx16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY
中文描述: 1,600位[2Mx8/1Mx16] CMOS單電壓3V時(shí)僅閃存
文件頁數(shù): 20/66頁
文件大?。?/td> 1359K
代理商: MX29LV160T
20
P/N:PM0866
MX29LV160T/B & MX29LV160AT/AB
REV. 3.7, APR. 23, 2003
CHIP UNPROTECT
The MX29LV160T/B & MX29LV160AT/AB 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 unprotection mechanism
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.
a logical "1" at Q0 for the protected sector.
The system must write the reset command to exit the
"Silicon-ID Read Command" code.
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