参数资料
型号: AT45DB021B-TU
厂商: Atmel
文件页数: 25/32页
文件大小: 0K
描述: IC FLASH 2MBIT 20MHZ 28TSOP
标准包装: 234
格式 - 存储器: 闪存
存储器类型: DataFLASH
存储容量: 2M(1024 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: 28-TSSOP(0.465",11.8mm 宽)
供应商设备封装: 28-TSOP
包装: 托盘
AT45DB021B
Figure 15-1. Algorithm for Sequentially Programming or Reprogramming the Entire Array
START
provide address
and data
BUFFER WRITE
(84H, 87H)
MAIN MEMORY PAGE PROGRAM
THROUGH BUFFER
(82H, 85H)
BUFFER TO MAIN
MEMORY PAGE PROGRAM
(83H, 86H)
END
Notes:
1. This type of algorithm is used for applications in which the entire array is programmed sequentially, filling the array
page-by-page.
2. A page can be written using either a Main Memory Page Program operation or a Buffer Write operation followed by a Buffer
to Main Memory Page Program operation.
3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each page
within the entire array.
25
1937J–DFLSH–9/05
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