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參數(shù)資料
| 型號： | AT45DB011 |
| 廠商： | Atmel Corp. |
| 英文描述： | 1-megabit 2.7-volt Only Serial DataFlash(1M位 2.7V串行數(shù)據(jù)閃速存儲器) |
| 中文描述： | 1兆位2.7伏，只有序列上DataFlash（100萬位為2.7V串行數(shù)據(jù)閃速存儲器） |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 266K |
| 代理商： | AT45DB011 |
AT45DB011
17
Figure 2.
Algorithm for Randomly Modifying Data
Notes:
1. To preserve data integrity, each page of a DataFlash sector must be updated/rewritten at least once within every 10,000
cumulative page erase/program operations within that sector.
2. A Page Address Pointer must be maintained to indicate which page is to be rewritten. The Auto Page Rewrite command
must use the address specified by the Page Address Pointer.
3. Other algorithms can be used to rewrite portions of the Flash array. Low-power applications may choose to wait until 10,000
cumulative page erase/program operations have accumulated before rewriting all pages of the sector. See application note
AN-4 (
“
Using Atmel
’
s Serial DataFlash
”
) for more details.
Sector Addressing
PA8
PA7
PA6
PA5
PA4
PA3
PA2-PA0
Sector
0
0
0
0
0
0
X
0
0
X
X
X
X
X
X
1
1
X
X
X
X
X
X
2
START
MAIN MEMORY PAGE
to BUFFER TRANSFER
(53H)
INCREMENT PAGE
ADDRESS POINTER
(2)
Auto Page Rewrite
(2)
(58H)
END
provide address of
page to modify
If planning to modify multiple
bytes currently stored within
a page of the Flash array
MAIN MEMORY PAGE PROGRAM
(82H)
BUFFER WRITE
(84H)
BUFFER to MAIN
MEMORY PAGE PROGRAM
(83H)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| AT45DB021B-TU | 2-megabit 2.7-volt Only DataFlash |
| AT45DB021B-SC | 2-megabit 2.7-volt Only DataFlash?? |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT45DB011_01 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1-megabit 2.7-volt Only Serial DataFlash |
| AT45DB011B | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1-MEGABIT 2.7 VOLT ONLY DATA FLASH |
| AT45DB011B_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:1-megabit 2.7-volt Only DataFlash |
| AT45DB011B-CC | 功能描述:閃存 DATAFLASH 1M SERIAL 2.7V CBGA COM TEMP RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| AT45DB011B-CI | 功能描述:閃存 DATAFLASH 1M SERIAL 2.7V CBGA IND TEMP RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
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