参数资料
型号: AT45DB081
厂商: Atmel Corp.
英文描述: 8-Megabit 2.7-volt Only Serial DataFlash
中文描述: 8兆位2.7伏,只有序列的DataFlash
文件页数: 8/16页
文件大小: 115K
代理商: AT45DB081
AT45DB081
8
Main Memory Page Program through Buffers
SI
CMD
n
n+1
Last Byte
· Completes writing into selected buffer
· Starts self-timed erase/program operation
CS
r r r, PA11-7
PA6-0, BFA8
BFA7-0
Buffer Write
SI
CMD
X
X···X, BFA8
BFA7-0
n
n+1
Last Byte
· Completes writing into selected buffer
CS
Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
SI
CMD
PA6-0, X
CS
Starts self-timed erase/program operation
r r r, PA11-7
Each transition represents
8 bits and 8 clock cycles
Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
FLASH MEMORY ARRAY
PAGE (264 BYTES)
BUFFER 2 (264 BYTES)
BUFFER 1 (264 BYTES)
I/O INTERFACE
SI
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
MAIN MEMORY
PAGE PROGRAM
THROUGH BUFFER 2
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
MAIN MEMORY PAGE
PROGRAM THROUGH
BUFFER 1
BUFFER 1
WRITE
BUFFER 2
WRITE
n = 1st byte written
n+1 = 2nd byte written
相关PDF资料
PDF描述
AT45DB081-RC 8-Megabit 2.7-volt Only Serial DataFlash
AT45DB081-RI 8-Megabit 2.7-volt Only Serial DataFlash
AT45DB081-TC 8-Megabit 2.7-volt Only Serial DataFlash
AT45DB081-TI 8-Megabit 2.7-volt Only Serial DataFlash
AT45DB161-CC 16-Megabit 2.7-volt Only Serial DataFlash
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