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| 型号： | AM29F160DT90EI |
| 厂商： | ADVANCED MICRO DEVICES INC |
| 元件分类： | PROM |
| 英文描述： | 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| 中文描述： | 1M X 16 FLASH 5V PROM, 90 ns, PDSO48 |
| 封装： | MO-142DD, TSOP-48 |
| 文件页数： | 14/46页 |
| 文件大小： | 914K |
| 代理商： | AM29F160DT90EI |
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Am29F160D
13
Write Protect (WP#)
The Write Protect function provides a hardware
method of protecting the 16 Kbyte boot sector without
using V
ID
.
If the system asserts V
IL
on the WP# pin, the device
disables program and erase functions for the 16 Kbyte
boot sector (SA34 for top boot device and SA0 for bot-
tom boot device) independently of whether those sec-
tors were protected or unprotected using the method
described in “Sector Protection/Unprotection”.
If the system asserts V
IH
on the WP# pin, the device
reverts to whether the 16 Kbyte boot sector was previ-
ously set to be protected or unprotected using the
method described in “Sector Protection/Unprotection”.
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. Note, however, that the boot sector
will still be protected if WP# is asserted low. Once V
ID
is removed from the RESET# pin, all the previously pro-
tected sectors are protected again. Figure shows the
algorithm, and Figure 19 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. Boot sector remains
protected if WP# is low.
2. All previously protected sectors are protected once
again.
相关PDF资料 |
PDF描述 |
|---|---|
| AM29F160DT90FC | 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| AM29F160DT90FI | 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| AM29F160DB90EC | 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| AM29F160DB90EI | 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory |
| AM29F160DB90FC | Switch Mode Power Supply; Series:SC40; Output Voltage:5V; Output Power Max:40W; Output Current:4A; Number of Outputs:3; Output Current 2:1A; Output Current 3:0.5A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AM29F160DT-90EI | 功能描述:闪存 IC 16MX16, 3V 100K FLSH, BOTTM RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| AM29F200AB-120DPE1 | 制造商:Spansion 功能描述:5V 2M FLASH KNOWN GOOD DIE W/ BOTTOM BOOT (EXTENDED TEMP) - Gel-pak, waffle pack, wafer, diced wafer on film |
| AM29F200AB-90SC | 制造商:Advanced Micro Devices 功能描述:NOR Flash, 128K x 16, 44 Pin, Plastic, SOP |
| AM29F200AB90SI | 制造商:AMD 功能描述:NEW |
| AM29F200AT-120EC | 制造商:Advanced Micro Devices 功能描述:NOR Flash Parallel 5V 2Mbit 256K/128K x 8bit/16bit 120ns 48-Pin TSOP |
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