参数资料
型号: AT45DB011B-SI
厂商: Atmel
文件页数: 27/32页
文件大小: 0K
描述: IC FLASH 1MBIT 20MHZ 8SOIC
标准包装: 95
格式 - 存储器: 闪存
存储器类型: DataFLASH
存储容量: 1M(512 页 x 264 字节)
速度: 20MHz
接口: SPI 3 线串行
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
AT45DB011B
Figure 2. Algorithm for Randomly Modifying Data
START
provide address of
page to modify
MAIN MEMORY PAGE
to BUFFER TRANSFER
(53H)
If planning to modify multiple
bytes currently stored within
a page of the Flash array
BUFFER WRITE
(84H)
MAIN MEMORY PAGE PROGRAM
(82H)
BUFFER to MAIN
MEMORY PAGE PROGRAM
(83H)
(2)
Auto Page Rewrite
(58H)
INCREMENT PAGE
(2)
ADDRESS POINTER
END
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
0
0
1
PA7
0
X
X
PA6
0
X
X
PA5
0
X
X
PA4
0
X
X
PA3
0
X
X
PA2 - PA0
X
X
X
Sector
0
1
2
27
1984J–DFLASH–06/06
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AT45DB011B-SU 功能描述:闪存 1M 8 I/O SPI 264B 2.7V 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
AT45DB011B-XC 功能描述:闪存 1M SERIAL 2.7V - COM 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
AT45DB011B-XI 功能描述:闪存 DATAFLASH 1M SERIAL 2.7V TSSOP 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
AT45DB011B-XU 功能描述:闪存 1M SERIAL 2.7V - 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
AT45DB011D 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:1-megabit 2.7-volt Minimum DataFlash