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参数资料
| 型号： | AT45DB081D-SU |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 8-megabit 2.5-volt or 2.7-volt DataFlash |
| 中文描述： | 8M X 1 FLASH 2.7V PROM, PDSO8 |
| 封装： | 0.208 INCH, GREEN, PLASTIC, EIAJ, SOIC-8 |
| 文件页数： | 9/53页 |
| 文件大小： | 1105K |
| 代理商： | AT45DB081D-SU |
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9
3596E–DFLASH–02/07
AT45DB081D
7.4
Page Erase
The Page Erase command can be used to individually erase any page in the main memory array
allowing the Buffer to Main Memory Page Program to be utilized at a later time. To perform a
page erase in the DataFlash standard page size (264 bytes), an opcode of 81H must be loaded
into the device, followed by three address bytes comprised of 3 don’t care bits, 12 page address
bits (PA11 - PA0) that specify the page in the main memory to be erased and 9 don’t care bits.
To perform a page erase in the binary page size (256 bytes), the opcode 81H must be loaded
into the device, followed by three address bytes consist of 4 don’t care bits, 12 page address bits
(A19 - A8) that specify the page in the main memory to be erased and 8 don’t care bits.
W
hen a
low-to-high transition occurs on the CS pin, the part will erase the selected page (the erased
state is a logical 1). The erase operation is internally self-timed and should take place in a maxi-
mum time of t
PE
. During this time, the status register will indicate that the part is busy.
7.5
Block Erase
A block of eight pages can be erased at one time. This command is useful when large amounts
of data has to be written into the device. This will avoid using multiple Page Erase Commands.
To perform a block erase for the DataFlash standard page size (264 bytes), an opcode of 50H
must be loaded into the device, followed by three address bytes comprised of 3 don’t care bits,
9 page address bits (PA11 -PA3) and 12 don’t care bits. The 9 page address bits are used to
specify which block of eight pages is to be erased. To perform a block erase for the binary page
size (256 bytes), the opcode 50H must be loaded into the device, followed by three address
bytes consisting of 4 don’t care bits, 9 page address bits (A19 - A11) and 11 don’t care bits. The
9 page address bits are used to specify which block of eight pages is to be erased.
W
hen a low-
to-high transition occurs on the CS pin, the part will erase the selected block of eight pages. The
erase operation is internally self-timed and should take place in a maximum time of t
BE
. During
this time, the status register will indicate that the part is busy.
Table 7-1.
Block Erase Addressing
PA11/
A19
PA10/
A18
PA9/
A17
PA8/
A16
PA7/
A15
PA6/
A14
PA5/
A13
PA4/
A12
PA3/
A11
PA2/
A10
PA1/
A9
PA0/
A8
Block
0
0
0
0
0
0
0
0
0
X
X
X
0
0
0
0
0
0
0
0
0
1
X
X
X
1
0
0
0
0
0
0
0
1
0
X
X
X
2
0
0
0
0
0
0
0
1
1
X
X
X
3
1
1
1
1
1
1
1
0
0
X
X
X
508
1
1
1
1
1
1
1
0
1
X
X
X
509
1
1
1
1
1
1
1
1
0
X
X
X
510
1
1
1
1
1
1
1
1
1
X
X
X
511
相关PDF资料 |
PDF描述 |
|---|---|
| AT45DB081D-SU-2.5 | 8-megabit 2.5-volt or 2.7-volt DataFlash |
| AT45DB081 | 8-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB081-RC | 8-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB081-RI | 8-Megabit 2.7-volt Only Serial DataFlash |
| AT45DB081-TC | 8-Megabit 2.7-volt Only Serial DataFlash |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT45DB081D-SU SL383 | 制造商:Adesto Technologies 功能描述:Res Thin Film NET 60K Ohm/120K Ohm 0.5% 1/8W ±100ppm/°C SER Molded 6-Pin 0303 SMD 制造商:Adesto Technologies Corporation 功能描述:DATAFLASH, 8M, SERIAL, 2.7V - IND TEMP, GREEN 8 LEAD SOIC - Tape and Reel |
| AT45DB081D-SU SL955-AD | 功能描述:DATA FLASH 制造商:adesto technologies 系列:- 包装:剪切带（CT） 零件状态:停產 存储器类型:非易失 存储器格式:闪存 技术:FLASH 存储容量:8Mb （256 字节 x 4096 页） 时钟频率:66MHz 写周期时间 - 字，页:4ms 存储器接口:SPI 电压 - 电源:2.7 V ~ 3.6 V 工作温度:-40°C ~ 85°C（TC） 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 标准包装:1 |
| AT45DB081D-SU-2.5 | 功能描述:闪存 8MB 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 |
| AT45DB081D-SU-2.5-AD | 制造商:Adesto Technologies Corporation 功能描述:IC FLASH 8MBIT 50MHZ 8SOIC |
| AT45DB081D-SU-2.5-SL383 | 制造商:Adesto Technologies Corporation 功能描述:8-SOIC-W, IND TEMP, 2.5V, T&R - Tape and Reel 制造商:Adesto Technologies Corporation 功能描述:IC FLASH 8MBIT 50MHZ 8SOIC |
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