参数资料
型号: AT45DB041D-MU
厂商: ATMEL CORP
元件分类: DRAM
英文描述: 4-megabit 2.5-volt or 2.7-volt DataFlash
中文描述: 4M X 1 FLASH 2.7V PROM, DSO8
封装: 6 X 5 MM, 0.60 MM HEIGHT, GREEN, PLASTIC, MO-229, MLF-8
文件页数: 14/53页
文件大小: 1085K
代理商: AT45DB041D-MU
14
3595H–DFLASH–03/07
AT45DB041D
9.1
Sector Protection Register
The nonvolatile Sector Protection Register specifies which sectors are to be protected or unpro-
tected with either the software or hardware controlled protection methods. The Sector Protection
Register contains 8 bytes of data, of which byte locations 0 through 7 contain values that specify
whether sectors 0 through 7 will be protected or unprotected. The Sector Protection Register is
user modifiable and must first be erased before it can be reprogrammed.
Table 9-3
illustrates the
format of the Sector Protection Register.:
Note:
1. The default value for bytes 0 through 15 when shipped from Atmel
is 00H.
x = don’t care.
Table 9-2.
Sector Protection Register
Sector Number
0 (0a, 0b)
1 to 7
Protected
See
Table 9-3
FFH
Unprotected
00H
Table 9-3.
Sector 0 (0a, 0b)
0a
0b
Bit 3, 2
Data
Value
(Page 0-7)
(Page 8-255)
Bit 7, 6
Bit 5, 4
Bit 1, 0
Sectors 0a, 0b Unprotected
00
00
xx
xx
0xH
Protect Sector 0a
11
00
xx
xx
CxH
Protect Sector 0b (Page 8-255)
00
11
xx
xx
3xH
Protect Sectors 0a (Page 0-7), 0b
(Page 8-255)
(1)
11
11
xx
xx
FxH
相关PDF资料
PDF描述
AT45DB041D-MU-2.5 4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-SSU 4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-SSU-2.5 4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-SU 4-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB041D-SU-2.5 4-megabit 2.5-volt or 2.7-volt DataFlash
相关代理商/技术参数
参数描述
AT45DB041D-MU-2.5 功能描述:闪存 4MB SERIAL 2.5V - IND TEMP 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
AT45DB041D-MU-2.5-SL383 制造商:Adesto Technologies Corporation 功能描述:8-VDFN (5X6), IND TEMP, 2.5V, T&R - Tape and Reel 制造商:Adesto Technologies Corporation 功能描述:IC FLASH 4MBIT 50MHZ 8VDFN 制造商:Adesto Technologies Corporation 功能描述:Flash 4M, 66MHz 2.5-3.6V DataFlash
AT45DB041D-MUHT-T 制造商:Adesto Technologies Corporation 功能描述:8-UDFN (5X6), EXT TEMP NON-AECQ 2.7V T&R - Tape and Reel
AT45DB041D-MU-SL383 制造商:Adesto Technologies Corporation 功能描述:8-VDFN (5X6), IND TEMP, 2.7V, T&R - Tape and Reel 制造商:Adesto Technologies Corporation 功能描述:IC FLASH 4MBIT 66MHZ 8VDFN 制造商:Adesto Technologies Corporation 功能描述:Flash 4M, 66MHz 2.7-3.6V DataFlash
AT45DB041D-MU-SL954 制造商:Adesto Technologies Corporation 功能描述:IC FLASH 4MBIT 66MHZ 8VDFN