參數(shù)資料
型號: AM29LV160DB-70FI
廠商: ADVANCED MICRO DEVICES INC
元件分類: PROM
英文描述: 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
中文描述: 1M X 16 FLASH 3V PROM, 70 ns, PDSO48
封裝: REVERSE, MO-142DD, TSOP-48
文件頁數(shù): 16/50頁
文件大?。?/td> 792K
代理商: AM29LV160DB-70FI
Am29LV160D
15
Temporary Sector Unprotect
This feature allows temporary unprotection of previ-
ously protected sectors to change data in-system. The
Sector Unprotect mode is activated by setting the RE-
SET# pin to V
ID
. During this mode, formerly protected
sectors can be programmed or erased by selecting the
sector addresses. Once V
ID
is removed from the RE-
SET# pin, all the previously protected sectors are
protected again. Figure shows the algorithm, and Fig-
ure 22 shows the timing diagrams, for this feature.
Figure 1.
Temporary Sector Unprotect Operation
START
Perform Erase or
Program Operations
RESET# = V
IH
Temporary Sector
Unprotect Completed
(Note 2)
RESET# = V
ID
(Note 1)
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
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