ESMT
F49L320UA/F49L320BA
Operation Temperature Condition -40°C~85°C
Temporary Sector Unprotect Mode
This feature allows temporary unprotection of previously
protected sector to change data in-system. This mode is
can be programmed or erased by selecting the sector addresses.
Once VID is removed from the
pin, all the previously
RESET
protected sectors are protected again.
activated by setting the
pin to VID(10V-10.5V). During
RESET
this mode, all formerly protected sectors are un-protected and
Start
RESET = VID (Note 1)
Perform Erase or
Program Operation
Operation Completed
RESET = VIH
Temporary Sector
Unprotect Completed
(Note 2)
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once again.
Elite Semiconductor Memory Technology Inc.
Publication Date : Sep. 2008
Revision: 1.1 11/55
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
