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| 型号： | AT45DB011D-SSU |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 1-megabit 2.7-volt DataFlash |
| 中文描述： | 1M X 1 FLASH 2.7V PROM, PDSO8 |
| 封装： | 0.150 INCH, GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 10/52页 |
| 文件大小： | 1107K |
| 代理商： | AT45DB011D-SSU |
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10
3639B–DFLASH–02/07
AT45DB011D [Preliminary]
7.7
Chip Erase
The entire main memory can be erased at one time by using the Chip Erase command.
To execute the Chip Erase command, a 4-byte command sequence C7H, 94H, 80H and 9AH
must be clocked into the device. Since the entire memory array is to be erased, no address
bytes need to be clocked into the device, and any data clocked in after the opcode will be
ignored. After the last bit of the opcode sequence has been clocked in, the CS pin can be deas-
serted to start the erase process. The erase operation is internally self-timed and should take
place in a time of t
CE
. During this time, the Status Register will indicate that the device is busy.
The Chip Erase command will not affect sectors that are protected or locked down; the contents
of those sectors will remain unchanged. Only those sectors that are not protected or locked
down will be erased.
The WP pin can be asserted while the device is erasing, but protection will not be activated until
the internal erase cycle completes.
Figure 7-1.
Chip Erase
Table 7-2.
Sector Erase Addressing
PA8/
A16
PA7/
A15
PA6/
A14
PA5/
A13
PA4/
A12
PA3/
A11
PA2/
A10
PA1/
A9
PA0/
A8
Sector
0
0
0
0
0
0
X
X
X
0a
0
0
0
0
0
1
X
X
X
0b
0
1
0
0
0
0
0
0
0
1
1
0
X
X
X
X
X
X
X
2
1
1
X
X
X
X
X
X
X
3
Command
Byte 1
Byte 2
Byte 3
Byte 4
Chip Erase
C7H
94H
80H
9AH
Opcode
Byte 1
Opcode
Byte 2
Opcode
Byte 3
Opcode
Byte 4
CS
Each transition
represents 8 bits
SI
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB011D-SU | 1-megabit 2.7-volt DataFlash |
| AT45DB011 | 1-megabit 2.7-volt Only Serial DataFlash(1M位 2.7V串行数据闪速存储器) |
| AT45DB021B-CU | 2-megabit 2.7-volt Only DataFlash |
| AT45DB021B-RU | 2-megabit 2.7-volt Only DataFlash |
| AT45DB021B-SU | 2-megabit 2.7-volt Only DataFlash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB011D-SU | 制造商:Atmel Corporation 功能描述:DATAFLASH SERIAL 20MHZ 1MB 45DB011 |
| AT45DB011-JC | 制造商:Atmel Corporation 功能描述:1M X 1 FLASH 2.7V PROM, PQCC32 |
| AT45DB011-JI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:1-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB011-SC | 功能描述:闪存 1M bit 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 |
| AT45DB011-SI | 功能描述:闪存 1M bit 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 |
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