参数资料
型号: S29GL032M10TAIR40
厂商: SPANSION LLC
元件分类: PROM
英文描述: CAP 1.0UF 500V 10% X7R RAD-.475 .570X.500 CONF BULK
中文描述: 2M X 16 FLASH 3V PROM, 100 ns, PDSO48
封装: MO-142EC, TSOP-48
文件页数: 68/116页
文件大小: 6024K
代理商: S29GL032M10TAIR40
February 7, 2007 S29GL-M_00_B8
S29GL-M MirrorBitTM Flash Family
53
Data
Sheet
Temporary Sector Group Unprotect
This feature allows temporary unprotection of previously protected sector groups to change data
in-system. The Sector Group Unprotect mode is activated by setting the RESET# pin to VID. Dur-
ing this mode, formerly protected sector groups can be programmed or erased by selecting the
sector group addresses. Once VID is removed from the RESET# pin, all the previously protected
sector groups are protected again. For this feature, Figure 1 shows the algorithm, and Figure 23
shows the timing diagrams.
Notes:
1. All protected sector groups unprotected (If WP# = VIL, the highest or lowest address sector
remains protected for uniform sector devices, the top or bottom two address sectors remains
protected for boot sector devices).
2. All previously protected sector groups are protected once again.
Figure 1. Temporary Sector Group Unprotect Operation
START
Perform Erase or
Program Operations
RESET# = VIH
Temporary Sector
Group Unprotect Completed
(Note 2)
RESET# = VID
(Note 1)
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