参数资料
型号: AT45DB081B-TU
厂商: Atmel
文件页数: 17/33页
文件大小: 0K
描述: IC FLASH 8MBIT 20MHZ 28TSOP
标准包装: 234
格式 - 存储器: 闪存
存储器类型: DataFLASH
存储容量: 8M(4096 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
AT45DB081B
Read
The following block diagram and waveforms illustrate the various read sequences available.
Operations
FLASH MEMORY ARRAY
PAGE (264 BYTES)
MAIN MEMORY
PAGE TO
BUFFER 1
BUFFER 1 (264 BYTES)
MAIN MEMORY
PAGE TO
BUFFER 2
BUFFER 2 (264 BYTES)
BUFFER 1
READ
MAIN MEMORY
PAGE READ
BUFFER 2
READ
I/O INTERFACE
SO
Main Memory Page Read
CS
SI
CMD
r r r , PA11-7
PA6-0, BA8
BA7-0
X
X
X
X
SO
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
Starts reading page data into buffer
CS
n
n+1
SI
CMD
r r r , PA11-7
PA6-0, X
X
SO
Buffer Read
CS
SI
CMD
X
X···X, BFA8
BFA7-0
X
SO
Each transition represents
8 bits and 8 clock cycles
n
n+1
n = 1st byte read
n+1 = 2nd byte read
17
2225J–DFLSH–2/08
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AT45DB081D 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_07 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_08 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_09 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-megabit 2.5-volt or 2.7-volt DataFlash
AT45DB081D_13 制造商:AD 制造商全称:Analog Devices 功能描述:8-megabit 2.5V or 2.7V DataFlash