AT45DB321E-MWUF2B-T View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
AT45DB321E-MWUF2B-T
Unspecified
'AT45DB321E-MWUF2B-T' PDF : 72 Pages View PDF
23. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
Figure 23-1. Block Diagram
Flash Memory Array
Page (512/528 bytes)
Buffer 1 To
Main Memory
Page Program
Buffer 1 (512/528 bytes)
Buffer 1
Write
I/O Interface
Buffer 2 To
Main Memory
Page Program
Buffer 2 (512/528 bytes)
Buffer 2
Write
SI
Figure 23-2. Buffer Write
CS
SI (Input)
CMD
Binary Page Size
15 Dummy Bits + BFA8-BFA0
X
X···X, BFA9-8
BFA7-0
Completes Writing into Selected Buffer
n
n+1
Last Byte
Figure 23-3. Buffer to Main Memory Page Program
CS
SI (Input)
Starts Self-timed Erase/Program Operation
Binary Page Size
A21-A9 + 11 Dummy Bits
CMD
XX, PA12-6
PA5-0, XX XXXX XX
Each transition represents eight bits
n = 1st byte read
n+1 = 2nd byte read
AT45DB321E 54
8784E–DFLASH–10/2013
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