参数资料
型号: AT45DB011B-XU
厂商: Atmel
文件页数: 16/32页
文件大小: 0K
描述: IC FLASH 1MBIT 20MHZ 14TSSOP
标准包装: 96
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: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 管件
Write
The following block diagram and waveforms illustrate the various write sequences available.
Operations
FLASH MEMORY ARRAY
PAGE (264 BYTES)
BUFFER TO
MAIN MEMORY
PAGE PROGRAM
BUFFER (264 BYTES)
MAIN MEMORY PAGE
BUFFER
WRITE
PROGRAM THROUGH
BUFFER
I/O INTERFACE
SI
Main Memory Page Program through Buffer
· Completes writing into buffer
· Starts self-timed erase/program operation
CS
SI
CMD
r ···r , PA8-7
PA6-0, BFA8
BFA7-0
n
n+1
Last Byte
Buffer Write
· Completes writing into buffer
CS
SI
CMD
X
X···X, BFA8
BFA7-0
n
n+1
Last Byte
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
Starts self-timed erase/program operation
CS
SI
CMD
r ···r , PA8-7
PA6-0, X
X
Each transition represents
8 bits and 8 clock cycles
n = 1st byte written
n+1 = 2nd byte written
16
AT45DB011B
1984J–DFLASH–06/06
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