MX29LV017A ETC-unknow, MX29LV017A Datasheet - Page 19

• Manufacturer Part Number: MX29LV017A
• Description: 16m-bit [2mx8] Cmos Single Voltage
• Manufacturer: ETC-unknow

MX29LV017A
a logical "1" at Q0 for the protected sector.
The system must write the reset command to exit the
Automatic Select mode.
CHIP UNPROTECT
The MX29LV017A 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 Automatic Select 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:PM0901
REV. 1.0, NOV. 22, 2002
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