参数资料
型号: AM29LV065DU90REEN
厂商: Advanced Micro Devices, Inc.
英文描述: 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
中文描述: 64兆位(8米× 8位)的CMOS 3.0伏特,只有统一部门闪光控制记忆与VersatileIOTM
文件页数: 18/52页
文件大小: 1184K
代理商: AM29LV065DU90REEN
January 10, 2002
Am29LV065D
17
Temporary Sector Group Unprotect
(
Note:
In this device, a sector group consists of four adjacent
sectors that are protected or unprotected at the same time
(see
Table 4
)).
This feature allows temporary unprotection of previ-
ously protected sector groups to change data in-sys-
tem. The Sector Group Unprotect mode is activated by
setting the RESET# pin to V
ID
(8.5 V
12.5 V). During
this mode, formerly protected sector groups can be
programmed or erased by selecting the sector group
addresses. Once V
ID
is removed from the RESET#
pin, all the previously protected sector groups are
protected again.
Figure 1
shows the algorithm, and
Figure 21
shows the timing diagrams, for this feature.
Figure 1.
Temporary Sector Group
Unprotect Operation
START
Perform Erase or
Program Operations
RESET# = V
IH
Temporary Sector
Group Unprotect
Completed (Note 2)
RESET# = V
ID
(Note 1)
Notes:
1. All protected sector groups unprotected.
2. All previously protected sector groups are protected
once again.
相关PDF资料
PDF描述
AM29LV065DU90REI 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
AM29LV065DU90REIN 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
AM29LV065DU90RFE 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
AM29LV065DU101RWHE 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
AM29LV065DU90RWHIN 64 Megabit (8 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIOTM Control
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AM29LV065DU90REF 制造商:Spansion 功能描述:NOR Flash Parallel 3V/3.3V 64Mbit 8M x 8bit 90ns 48-Pin TSOP 制造商:Spansion 功能描述:IC SM FLASH 3V 64MB
AM29LV065DU90REF 制造商:Spansion 功能描述:FLASH MEMORY IC
AM29LV065DU90REI 制造商:Spansion 功能描述:NOR Flash Parallel 3.3V 64Mbit 8M x 8bit 90ns 48-Pin TSOP 制造商:Spansion 功能描述:IC, FLASH MEM, 64MBIT, 90NS, 48-TSOP, Memory Type:Flash, Memory Size:64Mbit, Mem
AM29LV065DU-90REI 制造商:Advanced Micro Devices 功能描述:NOR Flash, 8M x 8, 48 Pin, Plastic, TSSOP
AM29LV065DU90RWHF 制造商:Spansion 功能描述: